Accurate Education - A Quick Review of Nutraceuticals

Nutraceuticals:

A Quick Review of Nutraceuticals

Nutraceuticals are foods or food components that have significant health benefits, and are used to prevent or treat disease. They are a combination of nutrition and pharmaceuticals, and are biologically active. While vitamin and mineral supplements are considered “nutraceuticals,” for the purpose of this section, they are covered in a separate vitamin and mineral supplements section.

See:

Dietary Polyphenols for Pain – Diagnosis Based
Dietary Polyphenols for Pain – Compound Based
For more information, see: clevelandclinic.org

Also See:

Key to Links:

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Definitions and Terms Related to Pain

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Curcumin
Resveratrol
Cyanidin
Quercetin
Kaempferol
EGCG
Comparative Analysis of phytonutrients for peripheral & central sensitization

A Quick Review of Nutraceuticals

This section represents a brief overview of nutraceuticals often recommended for pain management or disease-related symptoms but also for general health wellness. It is not meant to be exhaustive, but rather a quick reference for confirming recommended supplements, their indications and their doses. There will be links to pages that will serve as more in-depth sources of information for those who want to pursue greater knowledge of the subject.

Why Nutraceuticals?

Nutraceuticals are purported to have significant health benefits, including the prevention or treatment of disease or their symptoms. This website focuses on the management of pain and most of the nutraceuticals reviewed here are directed at reducing pain, chronic and acute. The management of chronic pain includes reducing the driving forces of chronic pain: oxidative stress and systemic inflammation. Thus the majority of nutraceuticals here reference their capacity for reducing these conditions.

Selecting nutraceuticals can be complicated due to lack of knowledge regarding its benefits, including the level of confidence in its likely effectiveness. Identifying which formulation of a nutraceutical to choose can also be challenging yet crucial in achieving expected therapeutic goals. This web section is an effort to introduce nutraceuticals to those who would likely benefit from their use and provide the basic information needed to proceed.

Understanding a recommended nutraceutical includes not just identifying its benefits and dosing, but also learning about the different forms available that may impact bioavailability, a critical variable in determining effectiveness.

Levels of confidence in benefits associated with the use of nutraceuticals

The state of the art in the medical community is such that definitive research and clinical recommendations are often incompletely available due to inadequate research. Often this is the case for financial reasons limiting research but it may simply be that the medical community has not fully gained access to enough reliable knowledge to offer concrete conclusions.

For these reasons, the recommendation here are based on diligent exploration of current research but acknowledgement is made that further research is generally necessary to offer absolute definitive recommendations. The recommendations made here are based on good safety profiles for each nutraceutical and reasonable expectations of clinical benefits.

The level of confidence (LOC) as to recommendations based on benefit for different nutraceuticals varies based on the level of research available See: Levels of Confidence in Scientific Studies. At this time each nutraceutical is labeled low, medium or highly recommended. Hopefully with time levels of confidence will improve as more research is made available.

Factors that Influence Effectiveness

Many factors influence the degree of effectiveness and benefit an individual may experience with a nutraceutical, including genetic-based responsiveness, medication or food interactions, and bioavailability Assessing an individual’s genetic-based responsiveness, and medication or food interactions is highly variable and beyond the scope of this treatise. However, bioavailability is an important consideration necessary to understanding which nutraceutical fomulation to engage.

Bioavailability of Supplements

In some cases, orally ingested supplemental compounds are not able to adequately access the tissues for which they are targeted, in which their “bioavailability” is considered impaired or limited. There are many reasons for bioavailability to be compromised:

They may be destroyed by stomach acidity
They may not be absorbed through the gut wall
They may be rapidly broken down by the liver before gaining access to the blood
They may not access target tissue due to barriers, like the blood brain barrier which limits if compounds in the blood to enter the central nervous system and brain
They may not penetrate cell membrane tissue access the intracellular space

In these cases, products may need to be formulated to enhance absorption and delivery of the compounds to targeted tissues, especially the blood or the central nervous system. Many supplements incorporate delivery systems designed to enhance bioavailability.

Delivery Systems to Enhance Bioavailability

Current delivery systems include phytosomes, liposomes and nano-formulations. The benefits of such delivery systems may be important in selecting a particular nutraceutical to purchase.

Phytosomes and Liposomes

Phytosomes and liposomes are both designed to enhance the bioavailability of individual compounds. They are structurally related, but they have some key differences:

Structure
Liposomes are concentric vesicles with a lipid bilayer that surrounds an aqueous volume. Phytosomes are a complex of phospholipids and natural active phytochemicals that are chemically bound together.
Active compounds
In liposomes, the active compounds are dissolved in the internal aqueous core or bilayer lipid membrane. In phytosomes, the active compounds are conjugated to the hydrophilic choline head of the phospholipid.
Stability
Phytosomes are more stable than liposomes due to the chemical bonds between the phospholipid and active compounds.
Bioavailability
Phytosomes are better absorbed than liposomes due to their higher bioactive/lipid ratio.
Uses
Liposomes are primarily used in cosmetics to deliver water-soluble substances to the skin. Phytosomes are used in both dietary supplements and skin care products

Nano-formulations

The “nanosome” encapsulation system is very similar to liposomes but nanosomes possess only a single lipid monolayer and are much smaller. Drug formulations in the nanometer range have better pharmacokinetics than those in the micrometer range because smaller carriers have a greater effective surface area. This greater surface area increases the dissolution rate and bioavailability of the active agents.The liposome diameter varies from 400 nm to 2.5 μm. Nanoparticles (NPs) are smaller particles ranging in size from 1 to 100 nm.

Because of their extremely small size, NPs have unique physical and chemical properties that can be exploited for drug delivery by conjugation with drugs. They can pass through the cracks found in the basement membrane and then reach and internalize into different organs as needed. Nanoparticles can improve the bioavailability of micronutrients, for example, vitamin B₁₂, vitamin A, folic acid, and iron.

Oxidative Stress and Anti-oxidant Therapy

Oxidative stress is an imbalance where unstable molecules called free radicals overwhelm the body’s antioxidant defenses, leading to cellular damage that contributes to neuropathic and chronic pain by damaging neurons, amplifying inflammation, and sensitizing pain receptors.

Although suppressing oxidative stress using antioxidants is beneficial for the management of pain, as reported by many clinical studies, the effectiveness of antioxidant therapies is controversial for several reasons.

First of all, in different stages of diseases, oxidative stress may have different roles according to the oxidative stress levels. Thus, verifying oxidative stress biomarkers levels to assess the antioxidant power of a patient can be helpful to give the antioxidant treatments at the appropriate time. But the science of making this assessment is still young and difficult to apply and not all biomarkers of oxidative stress are useful for monitoring.

Second, not all antioxidants are effective, and the dosing strategies in clinical trials are different, even in the same pathology. Taken together, the information here regarding antioxidant therapy must be considered to all intents and purposes an effort to improve quality of life and longevity that is based on the incomplete current level of knowledge available .

Assessing Oxidative Stress

There are currently no established clinical guidelines or consensus statements that specifically recommend routine integration of oxidative stress biomarkers and omega-3 fatty acid status into risk assessment and management protocols for chronic pain patients.

The existing evidence base consists primarily of observational studies and intervention trials demonstrating associations and therapeutic effects, but these have not yet been translated into formal clinical practice guidelines by major pain management societies. The available literature supports the biological plausibility and clinical relevance of these measurements, but stops short of providing standardized protocols for their implementation.

Current evidence-based considerations for assessing oxidative stress include:

– Omega-3 assessment: The omega-6/omega-3 ratio shows consistent associations with chronic pain conditions, with higher ratios linked to greater odds of temporomandibular disorder and low back pain. Each unit increase in the n-6/n-3 PUFA ratio correlates with increased pain intensity (5-8 points on a 0-100 scale) across multiple pain conditions.[1][2] at this time, omega-3 assessments are the best means of evaluating an individual oxidative stress level and monitoring its changes relative to treatment.

– Oxidative stress markers: While 77% of chronic pain patients exhibit at least one abnormal biomarker, there is no consensus on which markers to measure routinely or what thresholds should trigger intervention. Research demonstrates that elevated plasma biomarkers F₂-isoprostanes and isofurans correlate significantly with pain intensity, widespread pain, and functional impairment.[3] Unfortunately, these tests are not available from Quest or LabCorp and they are not covered by insurance.

– Therapeutic implications: Meta-analysis demonstrates that omega-3 supplementation produces clinically meaningful pain reduction with effects becoming more pronounced over time at 6 months). Lower doses (≤1.35 g/day) may be more effective than higher doses.[4]

Practical approach: Measuring omega-3 index and omega-6/omega-3 ratios that indirectly reflect an individual’s oxidative stress is available and affordable as part of comprehensive chronic pain assessment, particularly when conventional treatments prove inadequate.

New methods that evaluate this power include HBA, a promising new method that is able to evaluate the ability of each individual to neutralize H2O2, a ROS which has a strong impact on cardiovascular pathophysiology. Unfortunately, this test it’s not yet commonly available.

References

Circulating Omega-6 and Omega-3 Polyunsaturated Fatty Acids in Painful Temporomandibular Disorder and Low Back Pain. Sanders AE, Weatherspoon ED, Ehrmann BM, et al. The Journal of Pain. 2022;23(10):1724-1736. doi:10.1016/j.jpain.2022.05.008.
Circulating Polyunsaturated Fatty Acids and Pain Intensity in Five Chronic Pain Conditions. Sanders AE, Weatherspoon ED, Ehrmann BM, et al. The Journal of Pain. 2023;24(3):478-489. doi:10.1016/j.jpain.2022.10.008.
Alleviation of Pain, PAIN Interference, and Oxidative Stress by a Novel Combination of Hemp Oil, Calamari Oil, and Broccoli: A Randomized, Double-Blind, Placebo-Controlled Trial. Carlisle C, Polley K, Panda C, et al. Nutrients. 2023;15(12):2654. doi:10.3390/nu15122654.
Effects of Omega-3 Fatty Acids on Chronic Pain: A Systematic Review and Meta-Analysis. Xie L, Wang X, Chu J, et al. Frontiers in Medicine. 2025;12:1654661. doi:10.3389/fmed.2025.1654661.

Assessing Omega-3s Status

Direct measure of Omega-3s

While assessing omega-3 fatty acid status does not directly measure oxidative stress levels, it provides insight into the body’s antioxidant capacity and susceptibility to oxidative damage. The relationship is inverse and mechanistic: higher omega-3 levels are associated with enhanced antioxidant defenses and reduced oxidative stress markers.

One assesses omega-3s status via the analysis of erythrocyte fatty acids, a measurement that reflects long term intakes over the previous 120 days. The omega 3 index reflects the content of EPA plus DHA in erythrocyte membranes expressed as a percentage of total erythrocyte fatty acids. This index can be used as a surrogate for assessing tissue levels of EPA plus DHA.

EPA and DHA typically comprise about 3%–5% of erythrocyte fatty acids in Western populations with low fish intakes. In Japan where fish consumption is high, erythrocyte EPA plus DHA are about twice as high.

Measure of plasma Omega-6/omega-3 ratios

The omega-6/omega-3 ratio shows consistent associations with chronic pain conditions, with higher ratios linked to greater odds of pain, pain, especially temporomandibular disorder and low back pain. Current recommendations advise this ratio to be approximately 5 to 6 whereas the average ratio found in the standard American diet is 12 to 18. It has been suggested, however, that the ratio is less important than the quantity of omega-3 in the diet.

Each unit increase in the n-6/n-3 PUFA ratio correlates with increased pain intensity (5-8 points on a 0-100 scale) across multiple pain conditions. Supplementing with omega-3 EPA and DHA fatty acids has been shown to improve improve the n-6/n-3 PUFA ratio as well as reduce pain.

Treating oxidative stress

The most effective methods for treating oxidative stress in chronic pain management include an anti-inflammatory diet and supplementing with antioxidants and targeted nutraceutical activation of the body’s own endogenous antioxidant pathways. These approaches address the fundamental role of reactive oxygen species (ROS) and neuroinflammation in chronic pain.

Oxidative stress contributes to chronic pain through multiple mechanisms: excessive ROS generation that causes oxidative damage, chronic inflammation, glial activation, and central/peripheral sensitization. Mitochondrial dysfunction amplifies these processes, creating a self-perpetuating cycle of pain and tissue damage.

(1) Anti-Inflammatory Diet

See: An Anti-inflammatory Diet

Following an anti-inflammatory diet is an important component of combating oxidative stress, but two caveats should be emphasized:

Perhaps the most important consideration is the necessity for avoiding pro inflammatory foods;
In many, if not most cases, the antioxidant and anti-inflammatory compounds found in foods will not be adequately ingested at usual levels of dietary intake to provide the significant benefits these compounds offer. Therefore the need for supplements is critical to gain the full potential of these healthful compounds.

(2) Nutraceutical targeted activation of the body’s own antioxidant pathways

Our bodies produce their own natural (endogenous) antioxidants. Activating the pathways to stimulate production of these natural antioxidants is another important means of combating oxidative stress. As will be noted below, multiple compounds have both antioxidant activity and have the capacity to stimulate the body’s own antioxidants..

Activation of the Nrf2 and SIRT1 pathway through the use of Nrf2 and SIRT1 inducers that exert potent analgesic effects by reducing damaging ROS-associated processes and reducing neuroinflammation.[1][11] These agents also enhance the analgesic effects of opioids and cannabinoids by upregulating μ-opioid, δ-opioid, and cannabinoid-2 receptors.[1]

(3) Antioxidants

Duration of treatment

The benefits of supplementing with nutraceuticals often requires a treatment duration of 3 to 6 months to achieve the full benefits they provide. Studies with ≥6 weeks of treatment showed pain benefits in 80% of patients, suggesting sustained antioxidant therapy is necessary for clinical effect.[8]

Alpha Lipoic acid (ALA)

See: Lipoic acid

LOC: High

Lipoic acid is a compound produced by plants, animals, and humans. It has a dual role in the body as it is an antioxidant and a cofactor for various enzymes. It is synthesized by the body, but the quantities produced are not enough to fulfill the energy requirement of cells. Thus, it must be obtained from the diet, especially from meat, vegetables, and fruits.

Alpha-lipoic acid (ALA) has some of the the strongest evidence for benefiting neuropathic pain, particularly diabetic peripheral neuropathy, with recommended dosing of 600 mg daily.[4][5][6] A combination of ALA (600 mg) and superoxide dismutase (140 IU) reduced analgesic use from 73.5% to 8% of patients over 60 days in chronic low back pain, with statistically and clinically significant pain improvement.[6] However, evidence for ALA in chemotherapy-induced peripheral neuropathy remains conflicting.[5]

Lipoic acid has numerous clinically valuable properties and studies support the potential use of lipoic acid in diabetes and for reducing the risk for developing atherosclerosis, hypertension, heart failure, and myocardial infarction.

Bioavailability:

Relatively poor, but R-ALA is more bioavailable than standard formulations of ALA (racemic equal mixture of R-ALA and L-ALA). When commercially available, nano-formulations likely to be preferred choice.

Dose: 200 to 1800 mg/day

ALA should be ingested on an empty stomach, at least 30 minutes before eating or at least 2 hours after eating
In order to maximize blood levels, take three 600-mg R-ALA doses (as NaR-ALA) at 15-minute intervals

Benefits:

The benefits of ALA appear not to be limited solely to the symptoms of diabetic neuropathy. Indeed, ALA can be considered as the only treatment that acts on the pathogenesis of the diseases, I.e. to prevent diabetic neuropathy
ALA is helpful in many diseases and conditions. ALA may reduce diabetic polyneuropathy (DPN), diabetic peripheral neuropathy pain, promote weight reduction in obese patients and alleviate MS symptoms,
ALA may also significantly decrease levels of triglycerides, total cholesterol, and low-density lipoproteins (LDLs – the “bad” cholesterol) but it will not affect levels of high-density lipoproteins (HDLs – the “good” cholesterol).
ALA has been shown to offer improvement in learning and memory along with anti-dementia properties
ALA has powerful antioxidant effects acting as a free radical scavenger but it also helps replenish other antioxidants including Vitamin C and Vitamin E, glutathione and CoQ10.

Forms:

ALA has two forms, R- and S- Lipoic Acid (R-ALA and S-ALA). Both are present equally in ALA supplements unless specified as R-Lipoic Acid, but only the natural R- form is present in foods while the S-form is synthetic and is present only in supplements.

Special Considerations:

Lipoid Acid is, probably for most people, the best anti-oxidant supplement to take if only adding one
S-ALA, the synthetic form, may interfere with important functions of R-ALA
Recommended: R-ALA supplement (NaR-ALA) – Life Extension) over standard LA (depending on cost). When they become available, choose enhanced absorption formula (nano-based)
ALA liquid formulations have greater blood levels and bioavailability compared to solid ALA.
In rare cases in genetically predisposed individuals, ALA may trigger low blood sugar and should be discontinued

References

The Role of Carbon Monoxide, Heme Oxygenase 1, and the Nrf2 Transcription Factor in the Modulation of Chronic Pain and Their Interactions With Opioids and Cannabinoids. Pol O. Medicinal Research Reviews. 2021;41(1):136-155. doi:10.1002/med.21726.
Neuroinflammation, Oxidative Stress and Their Interplay in Neuropathic Pain: Focus on Specialized Pro-Resolving Mediators and NADPH Oxidase Inhibitors as Potential Therapeutic Strategies. Teixeira-Santos L, Albino-Teixeira A, Pinho D. Pharmacological Research. 2020;162:105280. doi:10.1016/j.phrs.2020.105280.
SIRT1: A Likely Key for Future Therapeutic Strategies for Pain Management. Ilari S, Nucera S, Passacatini LC, et al. Pharmacological Research. 2025;213:107670. doi:10.1016/j.phrs.2025.107670.
Alpha-Lipoic Acid as an Antioxidant Strategy for Managing Neuropathic Pain. Viana MDM, Lauria PSS, Lima AA, et al. Antioxidants (Basel, Switzerland). 2022;11(12):2420. doi:10.3390/antiox11122420.
The Role of Diet and Non-Pharmacologic Supplements in the Treatment of Chronic Neuropathic Pain: A Systematic Review. Frediani JK, Lal AA, Kim E, et al. Pain Practice : The Official Journal of World Institute of Pain. 2024;24(1):186-210. doi:10.1111/papr.13291.
Alpha Lipoic Acid and Superoxide Dismutase in the Treatment of Chronic Low Back Pain. Battisti E, Albanese A, Guerra L, Argnani L, Giordano N. European Journal of Physical and Rehabilitation Medicine. 2013;49(5):659-64.
Treatment With Ascorbic Acid and Α-Tocopherol Modulates Oxidative-Stress Markers in the Spinal Cord of Rats With Neuropathic Pain. Riffel APK, Santos MCQ, de Souza JA, et al. Brazilian Journal of Medical and Biological Research = Revista Brasileira De Pesquisas Medicas E Biologicas. 2018;51(4):e7097. doi:10.1590/1414-431X20177097.
Effects of Antioxidants on Pain Perception in Patients With Fibromyalgia-a Systematic Review. Fernández-Araque A, Verde Z, Torres-Ortega C, et al. Journal of Clinical Medicine. 2022;11(9):2462. doi:10.3390/jcm11092462.
Food Pyramid for Subjects With Chronic Pain: Foods and Dietary Constituents as Anti-Inflammatory and Antioxidant Agents. Rondanelli M, Faliva MA, Miccono A, et al. Nutrition Research Reviews. 2018;31(1):131-151. doi:10.1017/S0954422417000270.
From Sea to Relief: The Therapeutic Potential of Marine Algal Antioxidants in Pain Alleviation. Belda-Antolí M, Ros Bernal FA, Vicente-Mampel J. Marine Drugs. 2025;23(7):270. doi:10.3390/md23070270.
The Therapeutic Potential of Nrf2 Inducers in Chronic Pain: Evidence From Preclinical Studies. Zhou YQ, Mei W, Tian XB, et al. Pharmacology & Therapeutics. 2021;225:107846. doi:10.1016/j.pharmthera.2021.107846.
Alleviation of Pain, PAIN Interference, and Oxidative Stress by a Novel Combination of Hemp Oil, Calamari Oil, and Broccoli: A Randomized, Double-Blind, Placebo-Controlled Trial. Carlisle C, Polley K, Panda C, et al. Nutrients. 2023;15(12):2654. doi:10.3390/nu15122654.

Acetyl-Carnitine (ALC)

LOC: High

Dose: 300 mg/day

Benefits:

Acetyl-l-carnitine was found likely ineffective or harmful for chemotherapy-induced neuropathy and should be avoided.[5]

Beta Caryophyllene (BCP)

CBD

LOC: Med-High, based on indication

Dose: mg/day

Benefits:

CBD has anti-inflammatory, anti-convulsant, anti-psychotic, anti-oxidant, neuroprotective and immunomodulatory effects but does not produce mind altering effects like THC. As a neuroprotective antioxidant, CBD is more potent than Vitamin C or Vitamin E. CBD is also thought to support sleep and reduce nausea, particularly related to chemotherapy. CBD, in combination with THC, modulates some of the side effects of THC, including reducing THC-induced anxiety and euphoria.

CoQ-10 (ubiquinol or ubiquinone)

LOC: High

Coenzyme Q10 (CoQ10) is highly safe and an essential compound found naturally in virtually every cell in the human body. It is essential for energy production in cells and is an important antioxidant. Dietary supplementation to raise CoQ10 levels has been shown to have multiple beneficial effects in many different conditions including those associated with mitochondrial functional impairment including fibromyalgia, diabetes, cardiovascular diseases, cancer, and muscular and neurodegenerative disorders which been associated with low CoQ10 levels.

Forms: Ubiquinol (preferred) & Ubiquinone Ubiquinol is better absorbed than ubiquinone

Benefits:

Most useful in diseases associated with CoQ10 deficiency, including diabetes mellitus, mitochondrial diseases (fibromyalgia, diabetic peripheral neuropathy), and cardiovascular disease (including moderate to severe heart failure.
CoQ10 supplementation significantly improves some of the parameters of lipid profile including total cholesterol and HDL-cholesterol levels in those with coronary artery disease, but may not affect the other lipid profiles

Dose: 100-200 mg/day up to 1,200 mg/day

Migraines: 100-400 mg/day improves migraine frequency, duration and severity

Fibromyalgia: 300 mg/day – may improve energy production & reduce pain by >50%

Dosing based on blood levels:

The blood level necessary for uptake of CoQ10 into specific tissues appears to be different for different tissues. For example, higher than “normal” CoQ-10 blood levels appear necessary to facilitate tissue uptake and transfer across the blood brain barrier and into the brain and spinal cord.

“Normal” CoQ10 levels range from 0.34–1.65 μg/ml (0.40 to 1.91 μmol/l )
Higher blood levels may be advised related to increased tissue needs
Steady-state blood levels with doses of 1,200 mg/day generally range from 5 to 10 μg/ml

Risks for deficiency:

Dyslipidemia (elevated cholesterol or triglycerides)
High blood pressure
Diabetes, esp diabetic peripheral neuropathy (DPN)
Migraine headaches
Depression
Fibromyalgia
Chronic fatigue syndrome
Central pain syndrome
Macular degeneration
Mitochondrial dysfunction
Cardiovascular disease, congestive heart failure
Medications: beta blockers (Inderal, metoprolol), tricyclic antidepressants (TCAs-Elavil (amitriptyline), doxepin)

Special Considerations:

Increased tissue needs for CoQ-10 are associated with:

Illness or disease processes
Advancing age
Use of cholesterol medications (statins: atorvastatin (Lipitor), lovastatin (Mevacor), and pravastatin (Prevachol)
Use of tricyclic antidepressants (Elavil/amitriptyline & doxepin)
Use of beta blockers (propranolol (Inderal) and metoprolol (Toprol)

Citicoline

LOC: Med-High

Citicoline is a brain nutrient that is believed to supports memory, mental energy, focus, attention, and overall cognitive health. It improves mitochondrial function, and it is the precursor to acetylcholine, a neurotransmitter that is intimately connected with nerve networks associated with memory. Cognitive impairments that precede the onset of Alzheimer’s disease have been associated with acetylcholine deficits.

Benefits: Supplementation with citicoline is thought to improve cognitive dysfunction and neurological recovery in various conditions including traumatic brain injuries, stroke, vascular dementia, Parkinson’s disease, and aging. However, the research to support citicoline benefits remains inadequate so definitive recommendations for supplementing with citicoline cannot be made.

Dose: range from 250 mg to 4,000 mg/day

Forms:

Citicoline sodium – a prescription medication used to treat neurological disorders in numerous Citicoline free-base – a dietary supplement in the United States

Special Considerations::

Citicoline is likely to be synergistic with other supplements including palmitoylethanolamide (PEA), honokiol, Acetyl-L-carnitine (ALC), Alpha-Lipoic Acid,Bacopa, curcumin and other NRF2 activators, as well as other supplements supportive of mitochondrial function.

Curcumin

LOC: High

Curcumin is the active compound in turmeric

Dosing: 1000 mg per day as monotherapy

Poor oral bioavailability, requires enhancement for proper absorption:

Ingest with black pepper
phytosomal or nano-formulations

Special Considerations:

Anti-inflammatory comparable benefit to NSAID diclofenac (Voltaren) in knee osteoarthritis but with less side effects
Drug interactions may be comparable to other anti-inflammatory medications including:

Antiplatelets, anticoagulants, thrombolytic agents, NSAIDs/salicylates

Ginger Root

LOC: Medium

A spice widely used as a spice as well as in traditional medicine

Anti-inflammatory and analgesic properties, beneficial for managing inflammatory pain

Inhibit COX and LOX pathways thus preventing arachidonic acid metabolism

Dose: 500-1000 mg per day

Drug interactions comparable to other anti-inflammatory medications: antiplatelets, anticoagulants and anti-diabetic drugs – increases risk of hypoglycemia

Benefits:

Rheumatoid Arthritis: A study compared 1.5 g of ginger powder to placebo showed a significant reduction in inflammatory mediators
Osteoarthritis: Questionable benefit

Melatonin

LOC: Med-High, based on indication

Dose: 3 mg at bedtime

Palmitoylethanolamide (PEA)

LOC: Med-High, based on indication

Palmitoylethanolamide a natural compound manufactured by the body and also found in foods such as eggs and milk PEA is emerging as a new agent in the treatment of pain and inflammation which has been used for many decades in the Netherlands and Europe.Recent interest in PEA ihas surged n the U.S. where itt is classified as a “food for medical purposes.”

Dose: 300-600 mg twice a day, or up to 1200 mg/day

Benefits: PEA has demonstrated effectiveness for multiple types of chronic pain associated with many conditions, but especially with neuropathic (nerve) pain, inflammatory pain and visceral pain such as endometriosis and interstitial cystitis. Other conditions with evidence of benefit with PEA include:

Arthritis – osteoarthritis & rheumatoid athritis
Fibromyalgia
Peripheral neuropathies – diabetic neuropathy & chemotherapy-induced peripheral neuropathy
Carpal tunnel syndrome
Opioid Tolerance and Hyperalgesia
Low back pain – herniated disc disease, failed back surgery syndrome, other
Sciatic pain
Dental pain
Neuropathic pain related to stroke & multiple sclerosis
Inflammatory Bowel Disease
Chronic pelvic pain
Shingles pain (postherpetic neuralgia)
Vaginal pain (vulvadynia)
Post-operative dental surgery pain
Traumatic Brain Injury/Chronic Traumatic Encephalopathy

Resveratrol

LOC: High

Forms: two isomeric forms (cis and trans)

The trans form is the predominant form and has the most potent therapeutic benefits

Dose:

Less than 500 mg/day may be sufficient to decrease blood glucose levels and generate cardioprotective effects
1000 mg/day – a repeated and moderate administration of resveratrol is better than the administration of a single, higher dose. A safe and efficient dose is 1 gm or more per day; however, resveratrol intake is safe at a dose of up to 5 gm/day

Benefits

Anti-inflammatory and antioxidant properties
Lowers cholesterol levels
Cardioprotective and neuroprotective benefits
Decreases blood glucose levels.

Superoxide Dismutase (SOD)

LOC: Low-Med

SOD by preventing formation of free radicals, and ALA by removing already formed free radicals.

Dose: SOD 10mg daily.

Dietary

Omega Fatty Acids

LOC: High

Omega fatty acids are essential for human health and cannot be synthesized by the body, so they must be ingested in food.
Omega-3 fatty acids are divided into three different types: Eicosapentaenoic acid (EPA), docosa-hexaenoic acid (DHA), and alpha-linolenic acid (ALA). The EPA and DHA are present in fish and can be used by the body without been changed. ALA, which is present in large quantities in nuts, must be converted to EPA and DHA.

Benefits:

Omega-3 fatty acids are anti-inflammatory and counter the processes of many chronic diseases.

Cardiovascular disease

The totality of evidence suggests EPA alone, administered in a highly-purified, high-dose form (in the form of icosapent ethyl (IPE)), improves cardiovascular outcomes among patients with elevated triglycerides at high cardiovascular risk, but EPA and DHA together does not.
Current guidelines endorse the use of IPE in statin-treated patients at high cardiovascular risk who have triglycerides >135 mg/dl.

Osteoarthritis

Helps reduce inflammation and joint pain (in osteoarthritis and rheumatoid arthritis) with high dose
Improvement in morning stiffness
May assist in reducing transition of acute to chronic pain

Dose

Dosing recommendations vary. Although the ideal amount to take is not firmly established, evidence suggests intakes of EPA + DHA ranging from 0.5 to 1.8 g per day.

Higher dose (>2.7g/day of EPA and DHA) recommended
A minimum of 3 months of treatment may be necessary for improved joint pain

Eicosapentaenoic acid (EPA) is a long-chain omega-3 fatty acid that is beneficial for cardiovascular health:

Sources
Found in cold-water fish like salmon and tuna, as well as in fish oil supplements. EPA can also be obtained from non-animal sources, such as microalgae and Yarrowia lipolytica.
Benefits
EPA can help lower the risk of heart disease, high blood pressure, and high triglycerides. It also has anti-inflammatory and antioxidative properties. EPA is available as a prescription drug to reduce triglyceride levels. As a supplement, it is commonly used for heart disease, depression, and preventing heart attack.
Osteoarthritis
A 2024 study demonstrates that the consumption of omega-3 PUFAs significantly reduces the risk of all-cause mortality in patients with OA. This effect is likely due to the anti-inflammatory, antioxidant, gut microbiota regulatory, and immune-modulating properties of omega-3 PUFAs.
Reduces Chronic Inflammation and Oxidative Stress
Aging is the most significant risk factor for OA. During aging, cells produce various inflammatory factors (chemokines and and other factors) that lead to chronic inflammation. This chronic inflammation accelerates aging and increases mortality risk by causing oxidative damage (oxidative stress), DNA telomere attrition, loss of protein balance, and stem cell depletion. Omega-3 fatty acids can effectively stabilize these inflammatory responses and reduce the risk of severe inflammatory reactions by inhibiting inflammation-related activity, disrupting the production of pro-inflammatory mediators and enhancing mitochondrial antioxidant capacity that reduces oxidative stress and inflammation.
Improvement of the Gut Microbiota
Disruption of the gut microbiota (dysbiosis) is an important factor in the development of OA by inducing immune activity and activating the “gut-joint axis,” that worsens OA progression. Omega-3 PUFAs can improve gut dysbiosis by regulating the gut microbiota and restoring the healthy ratio of Bacteroidetes to Firmicutes, which reduce intestinal inflammation by increasing short-chain fatty acid synthesis.Drug Interactions
EPA can slow blood clotting, so it should be taken with caution if you are also taking medications that slow clotting, such as aspirin, ibuprofen, or warfarinThe totality of evidence suggests EPA alone, administered in a highly-purified, high-dose form, improves cardiovascular outcomes among patients with elevated triglycerides at high cardiovascular risk, but EPA and DHA together does not. Current guidelines endorse the use of IPE in statin-treated patients at high cardiovascular risk who have triglycerides >135 mg/dl.

Eicosapentaenoic acid vs. docosahexaenoic acid for the prevention of cardiovascular disease – 2022

Boswellia 300-500 mg

LOC: Med

Benefits: Inflammation & Joint benefit

Curcumin

LOC: High

The active compound in turmeric
Anti-inflammatory
Comparable benefit to NSAID diclofenac (Voltaire) in knee osteoarthritis
Less side effects with curcumin
Drug interactions may be comparable to other anti-inflammatory medications including:
Antiplatelets, anticoagulants, thrombolytic agents, NSAIDs/salicylates

Dosing: 1000 mg per day as monotherapy

Poor oral bioavailability, requires enhancement for proper absorption:

Ingest with black pepper
liposomal or nano-formulations

Ginger Root

LOC: Med-High

Widely used as a spice as well as in traditional medicine

Anti-inflammatory and analgesic properties, beneficial for managing inflammatory pain

Inhibit COX and LOX pathways thus preventing arachidonic acid metabolism

Dosing: 500-1000 mg per day

Drug interactions comparable to other anti-inflammatory medications: antiplatelets, anticoagulants and anti-diabetic drugs – increases risk of hypoglycemia

Benefits:

Rheumatoid Arthritis: A study compared 1.5 g of ginger powder to placebo showed a significant reduction in inflammatory mediators
Osteoarthritis: Questionable benefit

Chia seed: 1 tablespoon – 24 mg of magnesium, 2400 mg omega three 800 mg omega six

Black seeds: 1 tablespoon – 40 mg magnesium 2350 mg omega-3 600 mg six

Fresh spinach: one cup – 24 mg magnesium

Salmon fillet: 26 mg magnesium 1500 mg omega-3 200mg omega-6

Medium sweet potato: 300 mg magnesium

Pumpkin seeds: one handful – 150 mg magnesium, 50 mg Omega-3, 6000 mg, Omega-6

Conditions

Chronic pain

Cardiovascular wellness

Fibromyalgia

Migraines

Mitochondrial dysfunction

Osteoarthritis

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Plant-based Nutrients (Phytonutrients) for Pain

Plant-based nutrients, or phytonutrients, are natural compounds found in fruits, vegetables, dark chocolate, coffee, and tea. These phytonutrients help reduce pain and inflammation in conditions like arthritis, migraines, nerve pain (sciatica, neuropathy, multiple sclerosis, spinal cord and brain injury), Alzheimer’s, and stroke. They include antioxidants that neutralize free-radical molecules to combat oxidation and anti-inflammatories that can ease joint pain, nerve pain, and brain-related symptoms by reducing inflammation.

Oxidative stress (excessive oxidation) and neuro-inflammation (inflammation involving the nervous system) are the fundamental drivers that maintain chronic pain that leads to peripheral and central sensitization and the magnified experience of pain associated with sensitization.

Oxidative stress, caused by an imbalance of reactive oxygen species (ROS) like hydroxyl radicals and reactive nitrogen species (RNS) like peroxynitrite, damage cells, proteins, lipids, and DNA, contributing to systemic inflammation and pain amplification (Rudrapal et al., 2022). In conditions like rheumatoid arthritis and osteoarthritis, ROS & RNS exacerbate joint inflammation, while in neuropathic pain (e.g., sciatica, peripheral neuropathy, multiple sclerosis), oxidative damage to nerves heightens central sensitization and increases pain.
Neuroinflammation drives migraines, headaches, and neurodegenerative conditions like Alzheimer’s, while spinal cord injury and stroke involve nerve damage and pain amplification and maintenance.

Regular intake of polyphenol-rich foods or supplements can scavenge ROS, modulate inflammatory pathways, and support pain management, offering a safe, accessible strategy to improve health and reduce pain. Bioavailability of polyphenols varies due to gut metabolism and solubility, but dietary strategies and advanced supplement forms can enhance absorption (Manach et al., 2004; Islam, 2025).

Listed here are powerful phytonutrients called polyphenols and the common polyphenol-rich foods in which they can be found. It is always recommended that one obtain the benefits of these compounds from eating the natural foods that contain them. However, these compounds are also available as dietary supplements that may be recommended by your doctor.

Selected Key Dietary Polyphenols

Below are key dietary polyphenols with strong evidence for reducing oxidative stress and inflammation, particularly in pain-related and neurodegenerative conditions. Each includes:

Pain-Related Benefits: listed in order of best evidence first
Common Food Sources: listed in order of most abundant amount of compound first
Dietary intake: amounts of compound in common food sources/100gm
Recommended Daily Intake
Bioavailability
Absorption Factors
Enhancement Strategies:
Supplement Recommendations
Preferred Supplement Forms: I.e. liposomal vs nano vs liquid etc
Suggestion Brands/Products:
Special Considerations:
Mechanisms of Action:
Efficacy in modulating peripheral and central sensitization:
Evidence of benefits:
Synergies: with other foods/compounds part of anti-inflammatory diet by mechanisms of benefit

How to Add Polyphenols to Your Diet

Daily Goal: Eat 2–3 servings of polyphenol-rich foods daily. Try smoothies with berries (cyanidin), salads with red onions (quercetin) and kale (kaempferol), green tea (no milk, EGCG), or turmeric (curcumin) with black pepper.
Boost Absorption: Pair with healthy fats (e.g., olive oil, avocado). Add black pepper to turmeric. Avoid milk with green tea (Hollman & Katan, 1999).
Supplements: Consider using supplements when the evidence is high for benefit. These phytonutrients are generally considered as safe (GCAS) by the FDA and should be well tolerated. Consider using higher quality brands like Thorne Advanced Nutrients (curcumin, quercetin, EGCG, resveratrol, ~$2.20/day) or Life Extension Two-Per-Day (quercetin, ~$0.80/day). Start with low doses and consult your doctor for drug interactions (e.g., blood thinners, MS drugs like Vumerity).
Monitoring: Check inflammation markers (e.g., CRP) after 4–12 weeks.

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Key Polyphenols:

Curcumin (Turmeric)

Pain-Related Benefits:

Curcumin, found in turmeric, is a top choice for reducing inflammation and pain in osteoarthritis, with strong clinical evidence showing 30–40% pain reduction and improved joint function in randomized controlled trials (RCTs) (Daily et al., 2016). It also helps with rheumatoid arthritis by easing joint swelling and stiffness, and reduces fibromyalgia and migraine pain by calming inflammation in the body and brain.

For nerve-related pain, such as sciatica, peripheral neuropathy, multiple sclerosis (MS), and spinal cord injury, curcumin lessens burning or tingling sensations by protecting nerves from oxidative damage. It may also support stroke and Alzheimer’s recovery by reducing brain inflammation, making it a versatile option for managing chronic pain and related symptoms.

Curcumin’s pain relief comes from its ability to block inflammation-causing molecules like IL-6 and TNF-α, which are key in arthritis and nerve pain. Studies suggest it reduces cartilage damage in osteoarthritis and may lower migraine frequency by calming brain inflammation. While more research is needed for conditions like MS and stroke, early studies show curcumin protects nerves and reduces pain amplification, offering hope for patients with complex pain conditions.

Common Food Sources: Turmeric root (100–200 mg/g, dried), curry powders, mango ginger.

Dietary Intake: Turmeric (100–200 mg curcumin/100 g dried root; 1 tsp ~2 g, provides ~200–400 mg curcumin); curry powders (~50–100 mg/100 g); mango ginger (~20–50 mg/100 g).

Recommended Daily Intake: 500–1,500 mg/day (supplements); 1–2 tsp turmeric (~200–400 mg curcumin) with black pepper for dietary intake (Rudrapal et al., 2022).
Bioavailability: Curcumin has very low bioavailability (<1%) due to poor solubility and rapid metabolism in the gut and liver, where it is conjugated to glucuronides (Manach et al., 2004).
Absorption Factors: Absorbed in the small intestine, curcumin is quickly metabolized, limiting plasma levels. Poor water solubility reduces uptake unless enhanced (Scalbert et al., 2005).
Enhancement Strategies: Dietary fats (e.g., olive oil, coconut milk) improve solubility and absorption (Zheng et al., 2015). Co-administration with piperine (black pepper) increases bioavailability by up to 2000% by inhibiting glucuronidation metabolism of cur cumin.However, Nanoparticles consistently achieve higher bioavailability enhancements (15.6- to 55.4-fold) compared to piperine’s 20-fold increase, with sustained plasma levels (up to 24 hours vs. 1–2 hours for piperine). This makes nanoparticles more effective for therapeutic applications requiring systemic exposure, such as pain management in arthritis or neuroinflammation in Alzheimer’s.
Supplement Recommendations: Use liposomal or nanoformulated curcumin for better absorption. Start with 500 mg/day, increasing to 1,500 mg/day if tolerated, under medical supervision.
Preferred Supplement Forms: Both Liposomal and Nanoparticle-based products offer superior bioavailability without piperine’s drug interaction risks.
Liposomal curcumin (e.g., Meriva) or micellar curcumin enhances solubility and cellular uptake (Zheng et al., 2015).
Nanoparticle formulations of curcumin achieve significantly higher bioavailability (15.6- to 55.4-fold) compared to unformulated curcumin, surpassing the up to 20-fold increase seen with piperine. These formulations offer sustained release, higher plasma concentrations, and reduced risk of drug interactions, making them a safer and more effective option. While piperine is a dietary enhancer, its potential for drug interactions and inconsistent efficacy at lower doses (e.g., 5 mg) coupled with the low dosage of curcumin associated with usual dietary intake makes nanoparticles the preferred choice for clinical applications.
Suggested Brands/Products:.
Liposomal products include Thorne Meriva-SF (~$2.20/day, 150 mg/4 capsules) and Life Extension Super Bio-Curcumin (~$1.50/day).
Nanoparticle-based products like Theracurmin (available from Thorne, ~$2.20/day for 180 mg) or Meriva (liposomal, ~$1.50/day for 500 mg)

Patient Safety: For patients with chronic pain conditions on medications (e.g., blood thinners), nanoparticle formulations are preferable to avoid piperine’s potential to alter drug metabolism, ensuring safer integration into treatment plans.
Special Considerations: Avoid with blood thinners (e.g., warfarin) due to potential interactions. Monitor for GI upset at high doses (>2 g/day) (Daily et al., 2016).
Mechanisms of Action (Patient-Friendly): Curcumin acts like a shield, stopping harmful molecules that damage joints and nerves, which helps reduce pain in arthritis and nerve conditions. It also calms inflammation in the body and brain, easing swelling, stiffness, and even migraine pain (Aggarwal & Harikumar, 2009).
Mechanisms of Action (Physician-Directed): Curcumin scavenges reactive oxygen species (ROS) like hydroxyl radicals and peroxynitrite, preventing lipid peroxidation and oxidative damage to neurons and joint tissues. It inhibits NF-κB, COX-2, and pro-inflammatory cytokines (IL-1β, IL-6, TNF-α), reducing inflammation in osteoarthritis, rheumatoid arthritis, and neuroinflammation in Alzheimer’s and stroke (Aggarwal & Harikumar, 2009; Daily et al., 2016).

Efficacy in modulating peripheral and central sensitization: Strong preclinical evidence for suppressing peripheral (TRPV1, COX-2 inhibition) and central sensitization (glial inhibition, NMDA receptor downregulation) in chronic constriction injury (CCI) and spinal cord injury (SCI) models. Limited clinical data suggest peripheral inflammation reduction (Nakagawa et al., 2014).

Preclinical Evidence in modulating sensitization:

- Neuropathic Pain Models: In a 2016 study in Neuroscience Letters, curcumin (50–200 mg/kg, oral, 7 days) attenuated mechanical allodynia and thermal hyperalgesia in a chronic constriction injury (CCI) model of neuropathic pain in rats. It reduced central sensitization by decreasing spinal expression of pro-inflammatory cytokines (TNF-α, IL-1β) and glial fibrillary acidic protein (GFAP, a marker of astrocyte activation), suggesting modulation of spinal glial activity and neuroinflammation. Curcumin also downregulated phosphorylated NR2B (NMDA receptor subunit), a key mediator of central sensitization.
- Spinal Cord Injury (SCI): A 2020 study in Molecular Pain showed that curcumin (100 mg/kg, intraperitoneal, 14 days) reduced mechanical allodynia and thermal hyperalgesia in a rat SCI model. It suppressed central sensitization by decreasing microglial activation and CX3CL1/CX3CR1 signaling in the spinal dorsal horn, critical pathways for pain amplification.
- Mechanisms: Curcumin inhibits NF-κB signaling, reducing pro-inflammatory cytokine release, and enhances antioxidant defenses (e.g., superoxide dismutase, catalase), mitigating oxidative stress-induced sensitization. It also modulates TRPV1 channels, reducing peripheral nociceptor sensitivity. Nanoparticle formulations (e.g., Theracurmin) enhance bioavailability, achieving up to 27-fold higher AUC compared to unformulated curcumin, potentially amplifying these effects (Sasaki et al., 2011,).

Clinical Evidence in modulating sensitization:

Limited direct evidence exists for curcumin’s effect on sensitization in humans. A 2014 study in Journal of Pain Research found that curcumin (400 mg/day, 8 weeks) reduced pain scores in osteoarthritis patients, possibly by suppressing peripheral inflammation (e.g., IL-6, CRP), which could indirectly reduce peripheral sensitization. However, no studies directly measured central sensitization markers (e.g., spinal or supraspinal activity) in humans.

Summary of Evidence in modulating sensitization:

Curcumin shows robust preclinical evidence for suppressing both peripheral (via TRPV1 and cytokine modulation) and central sensitization (via glial inhibition and NMDA receptor downregulation). Nanoparticle formulations enhance its efficacy, but clinical studies are needed to confirm effects on sensitization in humans.

Evidence of Benefits: Strong RCTs show 30–40% pain reduction in osteoarthritis (Daily et al., 2016); preclinical studies support benefits for fibromyalgia, migraines, neuropathy, MS, spinal cord injury, and stroke (Aziz et al., 2018).
Synergies:
Combining with berries (cyanidin) or green tea (EGCG) boosts antioxidant effects, protecting nerves in MS and stroke (Wen Deng et al., 2023).
Pairs well with omega-3 fatty acids (e.g., fish oil, 1–2 g/day EPA+DHA) to enhance anti-inflammatory effects. EPA and DHA can inhibit COX-2 (cyclooxygenase-2) by interfering with the COX-2 pathway through multiple mechanisms.

Resveratrol

Pain-Related Benefits:

Resveratrol shows moderate clinical evidence for reducing pain in arthritis, particularly rheumatoid arthritis, by decreasing joint swelling and tenderness (Khojah et al., 2018). It may also help with neuropathic pain in conditions like peripheral neuropathy, MS, spinal cord injury, and stroke by protecting nerves from oxidative stress.

Evidence for pain relief in migraines and fibromyalgia is less robust and relies on preclinical studies. For Alzheimer’s, resveratrol supports brain health by reducing inflammation and may ease related discomfort.

While human studies are limited for nerve pain, animal models suggest resveratrol reduces pain amplification in sciatica and MS, making it a promising option for patients seeking complementary pain relief.

Common Food Sources: Red grapes (skin, 1–2 mg/100 g), red wine (1–10 mg/L), blueberries, cranberries, peanuts, dark chocolate.
Dietary Intake: Red grapes (1–2 mg/100 g; 1 cup ~1–2 mg); red wine (1–10 mg/L; 150 mL glass ~1–1.5 mg); blueberries (~0.5–1 mg/100 gm).
Recommended Daily Intake: 100–500 mg/day (supplements); 1–2 glasses red wine or 1 cup grapes (~1–5 mg) for dietary intake (Rudrapal et al., 2022).
Bioavailability: Low (~1–5%) due to rapid gut/liver metabolism into glucuronides and sulfates (Manach et al., 2004).
Absorption Factors: Absorbed in the small intestine, peaks in plasma within 30–60 minutes, but rapid conjugation reduces effectiveness (Scalbert et al., 2005).
Enhancement Strategies: Consume with dietary fats (e.g., olive oil, avocado) to enhance solubility. Piperine may inhibit glucuronidation (Vestergaard & Ingmer, 2019).
Supplement Recommendations: Use liposomal resveratrol, starting at 100 mg/day, increasing to 500 mg/day if needed, with medical guidance.
Preferred Supplement Forms: Liposomal or nanoemulsion resveratrol for better absorption (Vestergaard & Ingmer, 2019).
Suggested Brands/Products: Thorne ResveraCel (~$2.20/day, 25 mg/4 capsules), Life Extension Optimized Resveratrol (~$1.00/day).
Special Considerations: Avoid high doses (>1 g/day) due to GI upset. Caution with anticoagulants due to platelet inhibition (Bonnefont-Rousselot, 2016).
Mechanisms of Action: Patient-Friendly: Resveratrol protects joints and nerves by stopping harmful molecules that cause damage and pain. It also reduces swelling in arthritis and supports brain health, helping with pain in conditions like stroke or Alzheimer’s (Rahman et al., 2020).
Mechanisms of Action: Physician-Directed: I Resveratrol’s benefits stem from reducing inflammation markers like IL-6 and CRP, which drive joint pain, and protecting neurons via SIRT1 and AMPK pathways. Resveratrol scavenges ROS (e.g., superoxide, hydroxyl radicals), reducing oxidative damage to neurons and tissues. It inhibits COX-1, decreasing thromboxane A2 and inflammation, and activates SIRT1 and AMPK pathways, promoting neuroprotection in Alzheimer’s, stroke, and neuropathic pain (Rahman et al., 2020; Meng et al., 2021).
Efficacy in modulating peripheral and central sensitization: Suppresses central sensitization via NMDA receptor and microglial inhibition (Cady et al., 2010). Clinical data are limited to cognitive benefits (Turner et al., 2014).

Preclinical Evidence in modulating sensitization:

- Neuropathic Pain: A 2010 study in Molecular Pain demonstrated that resveratrol (30 µg, intrathecal, single dose) reversed morphine-resistant neuropathic pain in rats by reducing spinal NR1 and NR2B NMDA receptor subunit expression, key mediators of central sensitization. It also suppressed microglial activation and pro-inflammatory cytokine release (IL-1β, IL-6) in the spinal cord (Cady et al., 2010,).
- Chronic Stress and Pain: A 2023 study in Cell Death & Disease showed that a bioactive dietary polyphenol preparation (BDPP) containing resveratrol (400 mg/kg, oral, via drinking water) reduced depression-like and anxiety-like behaviors in mice by reversing microglial activation in the amygdala and hippocampus. This suggests suppression of central sensitization in supraspinal pain-related regions (e.g., amygdala), mediated by the HMGB1-RAGE signaling pathway (Wang et al., 2023,).
- Mechanisms: Resveratrol activates SIRT1, a protein that inhibits NF-κB and promotes M2 (anti-inflammatory) microglial polarization, reducing neuroinflammation and central sensitization. It also modulates the gut-brain axis, enhancing metabolite bioavailability to suppress inflammation (Yan et al., 2022,).

Clinical Evidence in modulating sensitization:

A 2014 randomized controlled trial (RCT) in Journal of Alzheimer’s Disease found that resveratrol (200 mg/day, 26 weeks) improved memory and hippocampal connectivity in older adults, suggesting modulation of supraspinal plasticity, though direct pain sensitization was not assessed. Co-administration with piperine (20 mg) enhanced bioavailability, supporting its use in pain contexts (Turner et al., 2014,).

Summary of Evidence in modulating sensitization:

Resveratrol suppresses central sensitization by inhibiting NMDA receptors, microglial activation, and HMGB1-RAGE signaling in preclinical models. Its effects on supraspinal regions suggest potential for modulating central pain pathways, but clinical evidence specific to sensitization is lacking.

Evidence of Benefits: RCTs show reduced inflammation in rheumatoid arthritis (Khojah et al., 2018); preclinical data support neuropathy, MS, spinal cord injury, and stroke (Meng et al., 2021).
Synergies: Combines with omega-3s (1–2 g/day) to enhance anti-inflammatory effects via COX-1 inhibition. Pairs with berries (cyanidin) for antioxidant synergy in neuroprotection (Wen Deng et al., 2023).

Anthocyanins (Cyanidin)

Pain-Related Benefits:

Cyanidin, an anthocyanin, is found in various fruits and vegetables with red, purple, or blue hues. It has emerging clinical evidence for reducing joint pain and inflammation in osteoarthritis and rheumatoid arthritis, helping ease stiffness and swelling (Khoo et al., 2017). It also shows promise for neuropathic pain in sciatica, peripheral neuropathy, MS, and spinal cord injury by reducing oxidative stress on nerves (based on preclinical studies).

For migraines and Alzheimer’s, cyanidin may decrease inflammation-related discomfort, though human data are limited.

Its ability to block COX-1 and COX-2 enzymes reduces inflammation in joints and nerves, while its antioxidant properties protect against cell damage in stroke and Alzheimer’s. Though less studied than curcumin, cyanidin’s benefits in arthritis and potential in neuropathic pain make it a valuable addition to an anti-inflammatory diet.

Food Sources:

Food Sources: Found in 100g (= 0.71 cups) of red, purple and blue fruits and vegetables:

Up to: Pomegranate (2000 mg); Elderberries (580 mg); Blueberries (550 mg); Black Currant (475 mg); Sweet cherries (450 mg); Blackberries (325 mg), Red onions (outer layers 350 mg) Red cabbage (300 mg). Black Rice (500 mg); These anthocyanins contents may vary widely.

Fruit Juices: Found in 8 fl oz (240 mL) of non-concentrated fruit juice:

Up to: Pomegranate (450 mg); Elderberries (480 mg); Blueberries (450 mg); Black Currant (450 mg); Tart cherries (60 mg); Sweet cherries (40 mg); Blackberries (250 mg),

Dietary Intake: Blackberries (100–200 mg/100 g; 1 cup ~100–200 mg); blueberries (~50–100 mg/100 g); red cabbage (~20–50 mg/100 g).
Recommended Daily Intake: 50–100 mg/day (supplements); 1 cup blackberries or blueberries (~100–200 mg) for dietary intake (Rudrapal et al., 2022).

Bioavailability: Low (~1–2%) due to rapid metabolism to phenolic acids in the gut and colon (Manach et al., 2004).
Absorption Factors: Glycosylated forms (e.g., cyanidin-3-glucoside) are absorbed intact in the small intestine, but microbial metabolism reduces plasma levels (Khoo et al., 2017).
Enhancement Strategies: Consume with dietary fats (e.g., yogurt, avocado) to enhance absorption. Fermentable fibers (e.g., from berries) support gut microbial metabolism (Reis et al., 2016).
Supplement Recommendations: Use standardized berry extracts (20–30% anthocyanins), starting at 50 mg/day, with medical advice.
Preferred Supplement Forms: Liposomal or microencapsulated anthocyanin extracts for stability and absorption (Reis et al., 2016).
Suggested Brands/Products: Vitacost Bilberry Extract (~$0.50/day), Life Extension Blueberry Extract (~$0.80/day).
Special Considerations: Monitor for rare allergic reactions. Limited safety data for high doses (>200 mg/day) (Khoo et al., 2017).
Mechanisms of Action: Patient-Friendly: Cyanidin fights harmful molecules that hurt joints and nerves, reducing pain and swelling in arthritis. It also protects the brain, which may help with migraine or Alzheimer’s discomfort (Reis et al., 2016).
Mechanisms of Action: Physician-Directed: Cyanidin scavenges ROS, inhibiting lipid peroxidation in nerves and joints. It inhibits COX-1 and COX-2, reducing prostaglandin synthesis, which decreases inflammation in arthritis and neuroinflammation in Alzheimer’s and migraines. Its ability to block COX-1 and COX-2 enzymes reduces inflammation in joints and nerves, while its antioxidant properties protect against cell damage in stroke and Alzheimer’s(Reis et al., 2016; Khoo et al., 2017).
Efficacy in modulating peripheral and central sensitization:

Preclinical Evidence in modulating sensitization:

A 2017 study in Food & Nutrition Research found cyanidin (20–50 mg/kg, oral, 10 days) reduced inflammatory pain in mice by inhibiting COX-2 and prostaglandin E2, mitigating peripheral sensitization. A 2021 study in Molecular Pain showed cyanidin (30 mg/kg, oral, 14 days) reduced spinal TNF-α and glial activation in a rat CCI model, suggesting central sensitization suppression (Khoo et al., 2017; Li et al., 2021).

Mechanisms: Scavenges ROS, inhibits COX-1/COX-2, and reduces neuroinflammation via NF-κB suppression. Limited BBB crossing restricts direct CNS effects.

Clinical Evidence in modulating sensitization:

Limited to anti-inflammatory effects in arthritis (Khoo et al., 2017), with no direct sensitization studies.

Summary of Evidence in modulating sensitization:

Cyanidin suppresses peripheral sensitization via COX inhibition and shows moderate central sensitization effects in preclinical models. Clinical data are needed.

Evidence of Benefits: Clinical studies show reduced inflammation in arthritis; preclinical data support neuropathic pain, MS, stroke, and Alzheimer’s (Khoo et al., 2017).
Synergies: Pairs with omega-3s (1–2 g/day) to enhance COX inhibition. Combines with turmeric (curcumin) or green tea (EGCG) for antioxidant synergy in nerve protection (Wen Deng et al., 2023).

Quercetin

Pain-Related Benefits:

Quercetin reduces joint pain and stiffness in rheumatoid arthritis, with RCTs showing significant relief in morning stiffness and inflammation (Javadi et al., 2017). It also helps neuropathic pain in sciatica, peripheral neuropathy, and MS by protecting nerves from oxidative damage, with preclinical studies supporting its role in spinal cord injury and stroke. For migraines, quercetin may reduce severity by stabilizing mast cells and calming brain inflammation, though human evidence is limited.

Preclinical data suggest quercetin supports Alzheimer’s recovery by reducing neuroinflammation, making it a versatile option for patients with joint and nerve-related pain conditions.

Common Food Sources: Red onions (20–32 mg/100 g), capers, kale, apples, berries (e.g., cranberries, blueberries), also including broccoli, citrus fruits, cherries, green tea, coffee, and red wine.
Dietary Intake: Red onions (20–32 mg/100 g; 1 medium onion ~10–30 mg); kale (~10–20 mg/100 g); apples (~4–8 mg/100 g).
Recommended Daily Intake: 500–1,000 mg/day (supplements); 1–2 cups onions or kale (~10–30 mg) for dietary intake (Rudrapal et al., 2022).
Bioavailability: Low (~2–10%) due to glucuronidation and sulfation. Glycosides (e.g., quercetin-3-glucoside in onions) are better absorbed (Hollman & Katan, 1999).
Absorption Factors: Absorbed in the small intestine, with peak plasma levels at 1–2 hours. Glycosides enhance uptake compared to aglycones (Manach et al., 2004).
Enhancement Strategies: Consume with dietary fats (e.g., olive oil, nuts). Vitamin C may stabilize quercetin and reduce oxidation (Pérez-Jiménez et al., 2010).
Supplement Recommendations: Use liposomal quercetin, starting at 500 mg/day, increasing to 1,000 mg/day if tolerated, with medical supervision.
Preferred Supplement Forms: Liposomal or phytosome quercetin for improved absorption (Shi et al., 2019).
Suggested Brands/Products: Thorne Vitamin C with Quercetin (~$2.20/day, 50 mg/4 capsules), Life Extension Two-Per-Day (~$0.80/day, 5 mg/2 capsules).
Special Considerations: Caution with blood thinners or kidney issues due to CYP2D6 inhibition at high doses (>1.5 g/day) (Javadi et al., 2017).
Mechanisms of Action: Patient-Friendly: Quercetin protects joints and nerves by stopping harmful molecules that cause pain and damage. It reduces swelling in arthritis and calms brain inflammation, which may help with migraines or Alzheimer’s (Pandey & Rizvi, 2009).
Mechanisms of Action: Physician-Directed: Quercetin scavenges ROS, reducing lipid peroxidation in nerves and tissues. It inhibits NF-κB, AP-1, and lipoxygenase, lowering IL-6, TNF-α, and leukotriene production. Its anti-inflammatory effects target cytokines like IL-6 and TNF-α, easing arthritis and systemic inflammation. It activates Nrf2, similar to VUMERITY, supporting neuroprotection in MS, Alzheimer’s, and stroke (Javadi et al., 2017; Middleton et al., 2000).
Efficacy in modulating peripheral and central sensitization: Suppresses peripheral sensitization (TRPV1, COX-2) and moderate central effects (microglial inhibition). Clinical data support anti-inflammatory effects (Javadi et al., 2017).

Preclinical Evidence in modulating sensitization:

- Neuropathic Pain: A 2017 study in Neuropharmacology found that quercetin (100 mg/kg, oral, 14 days) reduced mechanical allodynia and thermal hyperalgesia in a rat sciatic nerve injury model. It suppressed peripheral sensitization by inhibiting TRPV1 channel activity in dorsal root ganglia (DRG) neurons and central sensitization by reducing spinal microglial activation and IL-1β expression.
- Inflammatory Pain: A 2022 review in Frontiers in Pharmacology noted that quercetin (50–200 mg/kg, oral) reduced inflammatory pain in mice by inhibiting COX-2 and prostaglandin production, key mediators of peripheral sensitization (Khan et al., 2021,).
- Mechanisms: Quercetin inhibits pro-inflammatory pathways (e.g., NF-κB, COX-2) and enhances Nrf2-mediated antioxidant responses, reducing oxidative stress in peripheral and central tissues. Its moderate BBB permeability limits direct CNS effects, but gut microbiota-derived metabolites (e.g., 3,4-dihydroxyphenylacetic acid) may enhance CNS bioavailability (Ma et al., 2020,).

Clinical Evidence in modulating sensitization:

A 2020 RCT in Journal of Clinical Nutrition found that quercetin (500 mg/day, 8 weeks) reduced CRP and IL-6 in patients with rheumatoid arthritis, suggesting suppression of peripheral inflammation that could mitigate sensitization. No direct studies on central sensitization were found.

Summary of Evidence in modulating sensitization:

Quercetin effectively suppresses peripheral sensitization via TRPV1 and COX-2 inhibition and shows moderate effects on central sensitization through microglial modulation. Clinical evidence supports its anti-inflammatory role, but direct sensitization studies are needed.

Evidence of Benefits: RCTs show pain reduction in rheumatoid arthritis (Javadi et al., 2017); preclinical data support neuropathy, MS, migraines, spinal cord injury, stroke, and Alzheimer’s (Ahmed et al., 2006).
Synergies: Combines with vitamin C (500–1,000 mg/day) to enhance antioxidant effects. Pairs with omega-3s or berries (cyanidin) for anti-inflammatory and neuroprotective benefits (Wen Deng et al., 2023).

Kaempferol

Pain-Related Benefits:

Kaempferol shows preclinical evidence for reducing joint pain and inflammation in rheumatoid arthritis and osteoarthritis by decreasing cartilage damage and swelling (Lee et al., 2018). It may help neuropathic pain in sciatica, peripheral neuropathy, MS, and spinal cord injury by protecting nerves from oxidative stress, though human studies are limited. For Alzheimer’s and migraines, kaempferol may reduce neuroinflammation, but evidence is primarily from animal models.

While clinical trials are needed, kaempferol’s antioxidant properties make it a promising addition for patients managing arthritis or nerve-related pain through diet or supplements.

Common Food Sources: Kale (47 mg/100 g), spinach, broccoli, capers, green tea (no milk).
Dietary Intake: Kale (47 mg/100 g; 1 cup ~20–50 mg); spinach (~20–30 mg/100 g); green tea (~5–10 mg/100 mL).
Recommended Daily Intake: 50–100 mg/day (supplements); 1 cup kale or spinach (~20–50 mg) for dietary intake (Rudrapal et al., 2022).
Bioavailability: Low (~2–5%) due to glucuronidation and sulfation. Glycosides are hydrolyzed in the intestine, improving absorption (Manach et al., 2004).
Absorption Factors: Absorbed in the small intestine, with peak plasma levels at 1–2 hours. Glycosides enhance uptake (Hollman & Katan, 1999).
Enhancement Strategies: Consume with dietary fats (e.g., olive oil, nuts). Avoid milk with green tea to improve absorption (Pérez-Jiménez et al., 2010).
Supplement Recommendations: Use standardized kaempferol extracts, starting at 50 mg/day, with medical advice.
Preferred Supplement Forms: Liposomal or nanoparticle kaempferol for better absorption (Lee et al., 2018).
Suggested Brands/Products: Life Extension Kale Extract (~$0.60/day), Vitacost Spinach Extract (~$0.50/day).
Special Considerations: Limited safety data for doses >200 mg/day. Monitor for mild GI upset (Lee et al., 2018).
Mechanisms of Action: Patient-Friendly: Kaempferol shields joints and nerves from damage by harmful molecules, reducing pain and swelling in arthritis. It may also calm brain inflammation, helping with migraines or Alzheimer’s discomfort (Pandey & Rizvi, 2009).
Mechanisms of Action: Physician-Directed: Kaempferol scavenges ROS, enhancing glutathione levels and inhibiting lipid peroxidation. It suppresses NF-κB and lipoxygenase, reducing IL-6 and TNF-α production, mitigating inflammation in arthritis and neuroinflammation in Alzheimer’s and migraines (Lee et al., 2018; Pandey & Rizvi, 2009). Its anti-inflammatory effects target NF-κB and lipoxygenase, reducing cytokines that drive joint and nerve pain.
Efficacy in modulating peripheral and central sensitization:

Preclinical Evidence in modulating sensitization:

- A 2018 study in Nutrients showed kaempferol (30–100 mg/kg, oral, 14 days) reduced mechanical allodynia and thermal hyperalgesia in a rat arthritis model by inhibiting COX-2 and iNOS, reducing peripheral sensitization. A 2020 study in Journal of Neuroinflammation found kaempferol (50 mg/kg, intraperitoneal, 7 days) suppressed central sensitization in a neuropathic pain model by reducing spinal microglial activation and IL-1β expression (Lee et al., 2018; Yang et al., 2020).
- Mechanisms: Inhibits NF-κB and MAPK pathways, reducing cytokine production and glial activation. Moderate BBB permeability limits direct CNS effects, but gut metabolites enhance systemic activity.

Clinical Evidence in modulating sensitization:

No direct studies on sensitization. Anti-inflammatory effects in humans suggest potential peripheral sensitization suppression.

Summary of Evidence in modulating sensitization:

Kaempferol shows preclinical promise for suppressing peripheral and central sensitization, but clinical data are lacking.

Evidence of Benefits: Preclinical studies show reduced joint inflammation in arthritis and neuroprotection in Alzheimer’s, stroke, MS, and neuropathy (Lee et al., 2018).
Synergies: Pairs with green tea (EGCG) for antioxidant synergy. Combines with omega-3s (1–2 g/day) to enhance anti-inflammatory effects in arthritis and nerve pain (Wen Deng et al., 2023).

EGCG (Green Tea)

Pain-Related Benefits:

EGCG has emerging RCT evidence for reducing neuropathic pain in MS, with 600–800 mg/day improving symptoms and biomarkers (Islam et al., 2025). It also helps osteoarthritis and rheumatoid arthritis by reducing joint pain and inflammation, and may decrease migraine frequency by calming brain inflammation. Preclinical studies support its role in sciatica, peripheral neuropathy, spinal cord injury, and stroke by protecting nerves from oxidative damage and reducing pain amplification.

EGCG’s benefits come from blocking inflammation pathways like JAK/STAT and NF-κB, which drive pain in arthritis and MS. In Alzheimer’s, it reduces brain plaques (60% in frontal cortex) and supports recovery, making it a promising option for patients with nerve pain or neurodegenerative conditions, though more human studies are needed for migraines and fibromyalgia.

Common Food Sources: Green tea and matcha green tea (50–100 mg/100 mL), cocoa powder (use unsweetened), dark chocolate, carob, blackberries apples, strawberries.

Dietary Intake: Green tea (50–100 mg/100 mL; 1 cup 240 mL ~100–300 mg); matcha (~100–150 mg/100 g); Black tea, white tea, and oolong tea contain significant amounts of EGCG, though generally less than green tea), apples (~2–5 mg/100 gm).

Recommended Daily Intake: 300–800 mg/day (supplements); 2–3 cups green tea (~100–300 mg) for dietary intake (Rudrapal et al., 2022).

Bioavailability: Moderate (~1–10%) due to poor intestinal absorption and glucuronidation in the liver (Manach et al., 2004).
Absorption Factors: Absorbed in the small intestine, peaks at 1–2 hours. Milk proteins (e.g., casein) reduce absorption (Hollman & Katan, 1999).
Enhancement Strategies: Consume with dietary fats (e.g., coconut oil). Avoid adding milk, its proteins will bind to the EGCG and prevent absorption.
Tips to maximize EGCG intake
Do not allow your tea to be exposed to boiling water, which is too hot and will destroy the EGCG.
Steep green tea for longer: Research suggests that increasing the brewing time for green tea can maximize EGCG content.
Consume green tea between meals: EGCG binds to proteins and minerals in food, reducing its absorption. Drinking tea between meals or on an empty stomach may improve bioavailability.
Opt for high-quality brewed teas: Avoid bottled, sweetened teas and premixed green teas, as they tend to be lower in antioxidants and may contain high amounts of sugar.
Supplement Recommendations: Use liposomal EGCG, starting at 300 mg/day, increasing to 800 mg/day with medical supervision.
Preferred Supplement Forms: Liposomal or nanoparticle EGCG for improved absorption (Rossi et al., 2008).
Suggested Brands/Products: Thorne Green Tea Phytosome (~$2.20/day, 50 mg/4 capsules), Life Extension Mega Green Tea Extract (~$1.00/day).
Special Considerations: Avoid >1,000 mg/day due to hepatotoxicity risks. Monitor for dizziness or liver issues (Steinmann et al., 2013).
Mechanisms of Action: Patient-Friendly: EGCG protects nerves and joints by stopping harmful molecules that cause pain and damage. It reduces swelling in arthritis and calms brain inflammation, helping with MS, migraines, or Alzheimer’s (Islam et al., 2025).
Mechanisms of Action: Physician-Directed: EGCG scavenges ROS, inhibits lipid peroxidation, and activates Nrf2, paralleling Vumerity’s mechanism (an MS medication). It suppresses COX-2, NF-κB, AP-1, and JAK/STAT pathways, reducing IL-1β, IL-6, and TNF-α production, mitigating inflammation in arthritis, MS, and neuroinflammation in Alzheimer’s and migraines (Islam et al., 2025; Jin et al., 2020).
Efficacy in modulating peripheral and central sensitization: Strong preclinical evidence for central sensitization suppression via MAPK and glial inhibition, enhanced by BBB penetrability (Xifró et al., 2015). Limited clinical data on sleep quality (Mähler et al., 2021).

Preclinical Evidence in modulating sensitization:

- Neuropathic Pain: A 2019 study in Brain Research Bulletin showed that EGCG (50 mg/kg, intraperitoneal, 7 days) reduced mechanical allodynia and thermal hyperalgesia in a rat CCI model. It suppressed central sensitization by decreasing spinal p38 MAPK phosphorylation and microglial activation, reducing pro-inflammatory cytokines (TNF-α, IL-1β).
- Cognitive Impairment: A 2020 study in Nutrients found that EGCG (10–50 mg/kg, oral, 4 weeks) improved memory in ethanol-induced cognitive impairment models in rats by increasing NR1 subunit expression in hippocampal neurons, suggesting modulation of synaptic plasticity relevant to central sensitization (Fila et al., 2020,).
- Mechanisms: EGCG crosses the blood-brain barrier (BBB) more effectively than curcumin due to its lower molecular weight and higher lipophilicity, enabling direct CNS effects. It inhibits NF-κB and MAPK pathways, reducing glial activation and cytokine release, and enhances antioxidant defenses, mitigating peripheral and central sensitization (Perry et al., 2018,).

Clinical Evidence in modulating sensitization:

A 2021 RCT in Nutrients reported that EGCG (150 mg/day, 12 weeks) improved sleep quality in humans, potentially by reducing neuroinflammation, which could indirectly modulate central sensitization. No direct studies on pain sensitization were identified.

Summary of Evidence in modulating sensitization:

EGCG shows strong preclinical evidence for suppressing central sensitization via glial inhibition and MAPK modulation, with potential peripheral effects through antioxidant activity. Its BBB penetrability enhances its CNS efficacy, but clinical data on pain sensitization are limited.

Evidence of Benefits: RCTs for MS (600–800 mg/day) and Alzheimer’s; preclinical data for arthritis, neuropathy, migraines, spinal cord injury, and stroke (Islam et al., 2025).
Synergies: Combines with omega-3s (1–2 g/day) for enhanced anti-inflammatory effects. Pairs with berries (cyanidin) or turmeric (curcumin) for antioxidant synergy in MS and Alzheimer’s (Wen Deng et al., 2023).

Comparative Analysis of Compounds for Peripheral & Central Sensitization:

Peripheral Sensitization

Strongest Evidence: Curcumin and quercetin effectively suppress peripheral sensitization by inhibiting TRPV1 channels and COX-2-mediated prostaglandin production in DRG neurons, reducing nociceptor hyperexcitability.

- Moderate Evidence: EGCG and myricetin show anti-inflammatory effects that may reduce peripheral inflammation, but direct evidence on nociceptor modulation is limited.
- Limited Evidence: Resveratrol and chrysin have less direct evidence for peripheral sensitization, primarily acting through systemic anti-inflammatory mechanisms.

Central Sensitization:

- Strongest Evidence: Curcumin, resveratrol, and EGCG robustly suppress central sensitization by inhibiting spinal and supraspinal glial activation (microglia, astrocytes), NMDA receptor activity, and pro-inflammatory cytokines (TNF-α, IL-1β, IL-6). Curcumin and EGCG also modulate MAPK pathways, while resveratrol targets SIRT1 and HMGB1-RAGE signaling.
- Moderate Evidence: Myricetin and chrysin reduce glial activation and cytokine release in preclinical models, but their lower BBB permeability limits CNS efficacy compared to EGCG.
- Limited Evidence: Quercetin’s CNS effects are constrained by moderate BBB crossing, though its metabolites may contribute to central modulation.

Bioavailability Considerations:

- Nanoparticle formulations significantly enhance curcumin’s bioavailability (9- to 55.4-fold vs. 20-fold with piperine), making it more effective for both peripheral and central effects (Shaikh et al., 2009,; Yallapu et al., 2012,).
- EGCG’s superior BBB penetrability enhances its CNS efficacy, while resveratrol benefits from piperine co-administration, though this introduces drug interaction risks (Turner et al., 2014,).
- Quercetin, myricetin, and chrysin have lower bioavailability, but nanoformulations or gut microbiota-derived metabolites may improve their efficacy (Tiwari et al., 2020,).

References

Islam MR, et al. Epigallocatechin 3-gallate-induced neuroprotection in neurodegenerative diseases. Mol Cell Biochem. 2025;480:3363–3383. doi:10.1007/s11010-025-05211-4.
VUMERITY® efficacy. https://www.vumerity.com/en_us/home/about/efficacy.html.
Daily JW, et al. Efficacy of turmeric extracts and curcumin for alleviating the symptoms of joint arthritis. J Med Food. 2016;19(8):717-729.
Javadi F, et al. The Effect of Quercetin on Inflammatory Factors and Clinical Symptoms in Women with Rheumatoid Arthritis. J Am Coll Nutr. 2017;36(1):9-15.
Aziz MT, et al. Curcumin: a potential therapeutic agent for neurological disorders. Curr Neuropharmacol. 2018;16(9):1256-1271.
Rossi L, et al. Benefits from dietary polyphenols for brain aging and Alzheimer’s disease. Neurochem Res. 2008;33(12):2390-2400.
Steinmann J, et al. Effects of green tea catechins on liver health: a review. Molecules. 2013;18(4):4567-4583.
Pandey KB, Rizvi SI. Plant polyphenols as dietary antioxidants in human health and disease. Oxid Med Cell Longev. 2009;2(5):270-278.
Shi J, et al. Enhanced bioavailability of quercetin via nanotechnological approaches. J Control Release. 2019;303:112-124.
Zheng B, et al. Novel formulation of curcumin with enhanced bioavailability. J Agric Food Chem. 2015;63(36):8011-8020.
Harikumar KB, Aggarwal BB. Resveratrol: a multitargeted agent for age-associated chronic diseases. Cell Cycle. 2008;7(8):1020-1035.
Meng X, et al. Resveratrol in the management of chronic inflammatory diseases. Phytother Res. 2021;35(3):1123-1134.
Rahman MH, et al. Role of resveratrol in neurodegenerative diseases. Front Biosci (Landmark Ed). 2020;25(4):733-750.
Hollman PC, Katan MB. Dietary flavonoids: intake, health effects and bioavailability. Food Chem Toxicol. 1999;37(9-10):937-942.
Khoo HE, et al. Anthocyanidins and anthocyanins: colored pigments as food, pharmaceutical ingredients, and the potential health benefits. Food Nutr Res. 2017;61(1):1361779.
Reis JF, et al. Anthocyanins and inflammation: a review of the evidence. Crit Rev Food Sci Nutr. 2016;56(15):2523-2530.
Lee CJ, et al. Kaempferol as an anti-inflammatory and antioxidant agent. Nutrients. 2018;10(10):1398.
Jin F, et al. The protective effect of EGCG on Alzheimer’s disease: a potential therapeutic agent. Front Neurosci. 2020;14:711.
Wen Deng, et al. Omega-3 polyunsaturated fatty acids reduce pain in osteoarthritis. Front Nutr. 2023;10:1233397.

Emphasis on Education

Accurate Clinic promotes patient education as the foundation of it’s medical care. In Dr. Ehlenberger’s integrative approach to patient care, including conventional and complementary and alternative medical (CAM) treatments, he may encourage or provide advice about the use of supplements. However, the specifics of choice of supplement, dosing and duration of treatment should be individualized through discussion with Dr. Ehlenberger. The following information and reference articles are presented to provide the reader with some of the latest research to facilitate evidence-based, informed decisions regarding the use of conventional as well as CAM treatments.

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