Nutrition and Diet:

Dietary Polyphenols for Pain – Diagnosis Based

Polyphenols are important compounds found in food that are major components of an anti-inflammatory diet. The anti-inflammatory diet is advised for chronic pain and many diseases and disorders, especially pain. The major drivers in chronic pain include systemic inflammation and oxidative stress along with peripheral and central sensitization. The polyphenols reviewed here are particularly recommended to help reduce these drivers of chronic pain.

This section reviews polyphenols based on diagnoses related to pain. For a list of polyphenols based on individual diagnoses, See: Dietary Polyphenols for Pain – Diagnosis Based


 

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Definitions and Terms Related to Pain

 

Dietary Polyphenols for Pain Management:

A Diagnosis-Based Approach to Reducing Oxidative Stress and Inflammation

Introduction

Dietary polyphenols are naturally occurring antioxidant compounds found in fruits, vegetables, tea, wine, and other plant-based foods that play a vital role in reducing oxidative stress and inflammation. Oxidative stress and systemic inflammation are the key drivers of chronic pain in  conditions such as osteoarthritis, rheumatoid arthritis, migraines, headaches, sciatica, peripheral neuropathy, multiple sclerosis, central sensitization, spinal cord injury, and brain trauma (including stroke).

Oxidative stress is caused by an excessive imbalance of reactive oxygen species (ROS) such as free radicals. These are compounds manufactured during metabolism in our body and they are present in our food and in our environment.  Oxidative stress damages cells, proteins, lipids (fats) and DNA, much like rust damages steel. It also contributes to systemic inflammation, which, along with oxidative stress, are the major drivers for the worsening of chronic pain.

For example, in conditions like rheumatoid arthritis and osteoarthritis, ROS worsen joint inflammation, while in neuropathic pain (e.g., sciatica, peripheral neuropathy), they damage   nerves leading to heightened pain. Nerve inflammation also drives migraines, headaches, and neurodegenerative conditions like Alzheimer’s.  Persistent oxidative stress and systemic inflammation lead to central sensitization, which has significant impact on quality of life because of associated heightened pain and sensitivity to stress.

Regular dietary intake of polyphenol-rich foods or supplements can neutralize ROS and reduce oxidative stress and suppress inflammation to improve health and reduce pain. Not all polyphenol compounds are readily absorbed when eaten (poor bioavailability) so in these cases how the footage prepared or how the supplement is manufactured, can make a big difference as to how much benefit intake of the polyphenol can have.  The bioavailability of polyphenols varies due to gut metabolism and solubility so dietary strategies and advanced supplement forms can enhance absorption.

Diagnoses and Polyphenol Interventions

Below, each diagnosis is addressed with tailored polyphenol recommendations, focusing on their antioxidant, anti-inflammatory, and neuroprotective benefits. Food sources, daily intake recommendations, and mechanisms are drawn from Rudrapal et al. (2022), Manach et al. (2004), Hollman & Katan (1999), Middleton et al. (2000), Jin et al. (2020), Xu et al. (2006), and Islam (2025), emphasizing practical application for pain management and neuroprotection.

1. Osteoarthritis

  • Pathophysiology: Oxidative stress and inflammation (e.g., elevated CRP, IL-6) drive cartilage degradation and joint pain, with ROS causing lipid peroxidation and matrix metalloproteinase (MMP) activation (Rudrapal et al., 2022).

 

  • Polyphenol Interventions:

    • Curcumin:

      • Food Sources: Turmeric (100–200 mg/g in dried root), curry powders, mango ginger; enhance with black pepper (piperine).
      • Recommended Intake: 500–1500 mg/day (supplement with piperine); 1 tsp turmeric (~2 g) provides ~200–400 mg.
      • Mechanisms: Inhibits NF-κB and COX-2, reducing IL-1β and IL-6; neutralizes ROS (•OH, peroxynitrite), protecting cartilage (Daily et al., 2016; Pragasam, 2012).

 


    • Cyanidin

      :

      • Food Sources: Blackberries (100–200 mg/100 g), blueberries, red grapes, red cabbage.
      • Recommended Intake: 50–100 mg/day (supplement); 1 cup blackberries provides ~100–200 mg.
      • Mechanisms: Inhibits COX-1/COX-2, reducing prostaglandin synthesis; scavenges ROS, limiting cartilage damage (Reis et al., 2016).

 


    • Quercetin:

      • Food Sources: Red onions (32 mg/100 g, highly bioavailable glycosides), apples, kale, berries (Hollman & Katan, 1999).
      • Recommended Intake: 500–1000 mg/day (supplement); 1 medium red onion provides ~10–30 mg.
      • Mechanisms: Inhibits NF-κB, AP-1, lipoxygenase, and NOS, reducing joint inflammation and cartilage breakdown (Javadi et al., 2017; Middleton et al., 2000).

 


    • EGCG

      :

      • Food Sources: Green tea (50–100 mg/cup, 240 mL), black tea, matcha; avoid milk to enhance absorption (Hollman & Katan, 1999).
      • Recommended Intake: 200–400 mg/day (supplement); 2–4 cups green tea; avoid >1200 mg/day due to hepatotoxicity risks (Islam, 2025).
      • Mechanisms: Inhibits COX-2, NF-κB, AP-1, and NOS, reducing IL-1β and TNF-α; scavenges ROS, protecting cartilage (Jin et al., 2020; Middleton et al., 2000).

 

  • Practical Notes:

Combine curcumin with meals (e.g., curries) and berries in smoothies. Prefer onions over apples for quercetin and green tea without milk for EGCG. Monitor pain (NRS) and inflammation (CRP, ESR) after 4–12 weeks.

 

2. Rheumatoid Arthritis

  • Pathophysiology: Autoimmune-driven inflammation and ROS (e.g., •OH) increase cytokines (IL-6, TNF-α) and joint damage, amplifying pain (Rudrapal et al., 2022).
  • Polyphenol Interventions:
    • Resveratrol:
      • Food Sources: Red grapes, red wine (1–10 mg/L), blueberries, dark chocolate.
      • Recommended Intake: 100–500 mg/day (supplement); 1–2 glasses red wine (150 mL) provides ~1–5 mg.
      • Mechanisms: Inhibits COX-1 and IL-6, reducing joint swelling and tenderness; scavenges ROS, protecting synovial tissue (Khojah et al., 2018; Meng et al., 2021).
    • EGCG:
      • Food Sources: Green tea (50–100 mg/cup, 240 mL), black tea, matcha; avoid milk (Hollman & Katan, 1999).
      • Recommended Intake: 200–400 mg/day (supplement); 2–4 cups green tea; avoid >1200 mg/day (Islam, 2025).
      • Mechanisms: Inhibits COX-2, NF-κB, and TNF-α, reducing joint inflammation; scavenges ROS, limiting tissue damage (Jin et al., 2020).
    • Kaempferol:
      • Food Sources: Kale (47 mg/100 g), spinach, broccoli, green tea (without milk) (Hollman & Katan, 1999).
      • Recommended Intake: 50–100 mg/day (supplement); 1 cup kale provides ~20–50 mg.
      • Mechanisms: Inhibits NF-κB, lipoxygenase, and IL-6, reducing cartilage degradation and bone erosion (Lee et al., 2018; Hollman & Katan, 1999).
    • Quercetin:
      • Food Sources: Red onions (32 mg/100 g), apples, kale, berries (Hollman & Katan, 1999).
      • Recommended Intake: 500–1000 mg/day (supplement); 1 medium red onion provides ~10–30 mg.
      • Mechanisms: Inhibits NF-κB, lipoxygenase, and IL-6, reducing leukotriene production and joint inflammation (Javadi et al., 2017; Hollman & Katan, 1999).
  • Practical Notes: Encourage green tea (without milk) and kale in diets. Supplements may reduce morning stiffness (Javadi et al., 2017). Monitor ESR and pain scores.

3. Migraines and Headaches

  • Pathophysiology: Neuroinflammation and oxidative stress (e.g., ROS-induced lipid peroxidation) trigger cortical spreading depression and pain pathways (Rudrapal et al., 2022).
  • Polyphenol Interventions:
    • EGCG:
      • Food Sources: Green tea (50–100 mg/cup, 240 mL), black tea, matcha; avoid milk (Hollman & Katan, 1999).
      • Recommended Intake: 200–400 mg/day (supplement); 2–4 cups green tea; avoid >1200 mg/day (Islam, 2025).
      • Mechanisms: Inhibits COX-2 and NF-κB, reducing neuroinflammation; scavenges ROS, protecting neural tissue; inhibits LPS-induced astrocyte activation and cytokine expression (Jin et al., 2020; Islam, 2025).
    • Quercetin:
      • Food Sources: Red onions (32 mg/100 g), apples, kale, berries (Hollman & Katan, 1999).
      • Recommended Intake: 500–1000 mg/day (supplement); 1 medium red onion provides ~10–30 mg.
      • Mechanisms: Inhibits NF-κB, lipoxygenase, and histamine release via mast cell stabilization, reducing neuroinflammation and migraine triggers (Javadi et al., 2017; Middleton et al., 2000).
    • Cyanidin:
      • Food Sources: Blackberries (100–200 mg/100 g), blueberries, red grapes.
      • Recommended Intake: 50–100 mg/day (supplement); 1 cup blackberries provides ~100–200 mg.
      • Mechanisms: Inhibits COX-1/COX-2, reducing prostaglandin-mediated pain; scavenges ROS, limiting neuroinflammation (Reis et al., 2016).
  • Practical Notes: Include berries and green tea (without milk) in diets. Quercetin supplements may reduce migraine frequency. Track headache frequency and NRS scores.

4. Sciatica

  • Pathophysiology: Nerve compression and ROS-driven oxidative damage amplify neuropathic pain and central sensitization (Rudrapal et al., 2022).
  • Polyphenol Interventions:
    • Curcumin:
      • Food Sources: Turmeric, curry powders, mango ginger; enhance with piperine.
      • Recommended Intake: 500–1500 mg/day (supplement); 1 tsp turmeric provides ~200–400 mg.
      • Mechanisms: Inhibits NF-κB and COX-2, reducing neuropathic inflammation; scavenges ROS, protecting nerve cells (Daily et al., 2016).
    • Resveratrol:
      • Food Sources: Red grapes, red wine, blueberries, dark chocolate.
      • Recommended Intake: 100–500 mg/day (supplement); 1–2 glasses red wine provides ~1–5 mg.
      • Mechanisms: Scavenges ROS, reducing neuronal oxidative damage; inhibits IL-6, alleviating neuropathic pain (Meng et al., 2021).
    • Quercetin:
      • Food Sources: Red onions, apples, kale, berries (Hollman & Katan, 1999).
      • Recommended Intake: 500–1000 mg/day (supplement); 1 medium red onion provides ~10–30 mg.
      • Mechanisms: Inhibits NF-κB and lipoxygenase, reducing neuropathic inflammation; scavenges ROS, protecting nerve tissue (Javadi et al., 2017; Hollman & Katan, 1999).
  • Practical Notes: Use curcumin in cooking and red onions in salads. Monitor DN4 scores for neuropathic pain after 4–12 weeks.

5. Peripheral Neuropathy

  • Pathophysiology: Oxidative stress damages peripheral nerves, increasing neuropathic pain and central sensitization (Rudrapal et al., 2022).
  • Polyphenol Interventions:
    • Resveratrol:
      • Food Sources: Red grapes, red wine, blueberries, dark chocolate.
      • Recommended Intake: 100–500 mg/day (supplement); 1–2 glasses red wine provides ~1–5 mg.
      • Mechanisms: Scavenges ROS, protecting nerve cells; inhibits IL-6, reducing neuropathic inflammation (Meng et al., 2021).
    • EGCG:
      • Food Sources: Green tea, black tea, matcha; avoid milk (Hollman & Katan, 1999).
      • Recommended Intake: 200–400 mg/day (supplement); 2–4 cups green tea; avoid >1200 mg/day (Islam, 2025).
      • Mechanisms: Scavenges ROS, reducing neuronal damage; inhibits COX-2 and NF-κB, alleviating inflammation; promotes autophagy, supporting nerve repair (Jin et al., 2020; Islam, 2025).
    • Quercetin:
      • Food Sources: Red onions, apples, kale, berries (Hollman & Katan, 1999).
      • Recommended Intake: 500–1000 mg/day (supplement); 1 medium red onion provides ~10–30 mg.
      • Mechanisms: Inhibits NF-κB and lipoxygenase, reducing neuropathic inflammation; scavenges ROS, protecting nerves (Javadi et al., 2017; Hollman & Katan, 1999).
  • Practical Notes: Encourage green tea (without milk) and onion-based dishes. Monitor DN4 and pain scores.

6. Multiple Sclerosis

  • Pathophysiology: Oxidative stress and inflammation damage myelin, exacerbating neuropathic pain and central sensitization (Rudrapal et al., 2022).
  • Polyphenol Interventions:
    • EGCG:
      • Food Sources: Green tea, black tea, matcha; avoid milk (Hollman & Katan, 1999).
      • Recommended Intake: 200–400 mg/day (supplement); 2–4 cups green tea; avoid >1200 mg/day (Islam, 2025).
      • Mechanisms: Scavenges ROS, protecting myelin; inhibits COX-2, NF-κB, and LPS-induced astrocyte activation; promotes autophagy and mitochondrial function, preventing neuronal apoptosis (Jin et al., 2020; Xu et al., 2006; Islam, 2025).
    • Quercetin:
      • Food Sources: Red onions, apples, kale, berries (Hollman & Katan, 1999).
      • Recommended Intake: 500–1000 mg/day (supplement); 1 medium red onion provides ~10–30 mg.
      • Mechanisms: Inhibits NF-κB and lipoxygenase, reducing neuroinflammation; scavenges ROS, protecting myelin (Javadi et al., 2017; Hollman & Katan, 1999).
    • Cyanidin:
      • Food Sources: Blackberries, blueberries, red grapes.
      • Recommended Intake: 50–100 mg/day (supplement); 1 cup blackberries provides ~100–200 mg.
      • Mechanisms: Inhibits COX-1/COX-2, reducing inflammation; scavenges ROS, protecting neural tissue (Reis et al., 2016).
  • Practical Notes: Include berries and green tea (without milk) in diets. Monitor DN4 and neurological symptoms.

7. Central Sensitization

  • Pathophysiology: Chronic oxidative stress and inflammation amplify pain signaling, increasing pain perception across conditions (Rudrapal et al., 2022).
  • Polyphenol Interventions:
    • Curcumin:
      • Food Sources: Turmeric, curry powders, mango ginger; enhance with piperine.
      • Recommended Intake: 500–1500 mg/day (supplement); 1 tsp turmeric provides ~200–400 mg.
      • Mechanisms: Inhibits NF-κB and COX-2, reducing central inflammation; scavenges ROS, limiting pain amplification (Daily et al., 2016).
    • Kaempferol:
      • Food Sources: Kale, spinach, broccoli, green tea (without milk) (Hollman & Katan, 1999).
      • Recommended Intake: 50–100 mg/day (supplement); 1 cup kale provides ~20–50 mg.
      • Mechanisms: Inhibits NF-κB and lipoxygenase, reducing central inflammation; scavenges ROS, protecting neurons (Lee et al., 2018; Hollman & Katan, 1999).
    • EGCG:
      • Food Sources: Green tea, black tea, matcha; avoid milk (Hollman & Katan, 1999).
      • Recommended Intake: 200–400 mg/day (supplement); 2–4 cups green tea; avoid >1200 mg/day (Islam, 2025).
      • Mechanisms: Inhibits COX-2, NF-κB, and LPS-induced astrocyte activation; promotes autophagy, reducing pain amplification (Jin et al., 2020; Islam, 2025).
  • Practical Notes: Use turmeric in cooking and kale in salads. Monitor NRS and patient-reported pain perception.

8. Systemic Inflammation

  • Pathophysiology: Elevated ROS and cytokines (e.g., IL-6, TNF-α, CRP) drive widespread inflammation, exacerbating pain across conditions (Rudrapal et al., 2022).
  • Polyphenol Interventions:
    • Resveratrol:
      • Food Sources: Red grapes, red wine, blueberries, dark chocolate.
      • Recommended Intake: 100–500 mg/day (supplement); 1–2 glasses red wine provides ~1–5 mg.
      • Mechanisms: Inhibits COX-1 and IL-6, reducing systemic inflammation; scavenges ROS (Meng et al., 2021).
    • Kaempferol:
      • Food Sources: Kale, spinach, broccoli, green tea (without milk) (Hollman & Katan, 1999).
      • Recommended Intake: 50–100 mg/day (supplement); 1 cup kale provides ~20–50 mg.
      • Mechanisms: Inhibits NF-κB, lipoxygenase, and IL-6, reducing systemic inflammation; scavenges ROS (Lee et al., 2018; Hollman & Katan, 1999).
    • Quercetin:
      • Food Sources: Red onions, apples, kale, berries (Hollman & Katan, 1999).
      • Recommended Intake: 500–1000 mg/day (supplement); 1 medium red onion provides ~10–30 mg.
      • Mechanisms: Inhibits NF-κB, lipoxygenase, and IL-6, reducing systemic inflammation; scavenges ROS (Javadi et al., 2017; Hollman & Katan, 1999).
  • Practical Notes: Encourage kale and red onions in diets. Monitor CRP and ESR levels after 4–12 weeks.

9. Alzheimer’s Disease

  • Pathophysiology: Oxidative stress, amyloid-beta (Aβ) accumulation, and neuroinflammation drive neuronal loss and pain, exacerbating cognitive decline and central sensitization (Rudrapal et al., 2022; Islam, 2025).
  • Polyphenol Interventions:
    • EGCG:
      • Food Sources: Green tea, black tea, matcha; avoid milk (Hollman & Katan, 1999).
      • Recommended Intake: 200–400 mg/day (supplement); 2–4 cups green tea (100–200 mg EGCG); avoid >1200 mg/day due to hepatotoxicity (Islam, 2025).
      • Mechanisms: Reduces Aβ deposits (60% in frontal cortex, 52% in hippocampus) and microglial activation (18% in cortex, 28% in hippocampus); inhibits LPS-induced astrocyte activation and cytokine expression; promotes autophagy and mitochondrial function, preventing neuronal apoptosis; scavenges ROS, reducing neuroinflammation (Islam, 2025; Xu et al., 2006).
    • Quercetin:
      • Food Sources: Red onions, apples, kale, berries (Hollman & Katan, 1999).
      • Recommended Intake: 500–1000 mg/day (supplement); 1 medium red onion provides ~10–30 mg.
      • Mechanisms: Inhibits NF-κB and lipoxygenase, reducing neuroinflammation; scavenges ROS, protecting neurons; may reduce Aβ-induced inflammation (Javadi et al., 2017; Middleton et al., 2000).
    • Resveratrol:
      • Food Sources: Red grapes, red wine, blueberries, dark chocolate.
      • Recommended Intake: 100–500 mg/day (supplement); 1–2 glasses red wine provides ~1–5 mg.
      • Mechanisms: Inhibits NF-κB and IL-6, reducing neuroinflammation; scavenges ROS, protecting against neuronal damage; modulates SIRT1, potentially reducing Aβ aggregation (Meng et al., 2021; Rahman et al., 2020).
  • Practical Notes: Encourage green tea (without milk) and berries. Monitor NRS, DN4, and cognitive scores (e.g., MMSE) after 4–12 weeks. Avoid EGCG >1200 mg/day (Islam, 2025).

10. Spinal Cord Injury

  • Pathophysiology: Oxidative stress and inflammation cause secondary neuronal damage, amplifying neuropathic pain and central sensitization (Rudrapal et al., 2022).
  • Polyphenol Interventions:
    • EGCG:
      • Food Sources: Green tea, black tea, matcha; avoid milk (Hollman & Katan, 1999).
      • Recommended Intake: 200–400 mg/day (supplement); 2–4 cups green tea; avoid >1200 mg/day (Islam, 2025).
      • Mechanisms: Scavenges ROS, reducing neuronal damage; inhibits COX-2 and NF-κB, alleviating neuroinflammation; promotes autophagy and mitochondrial function, supporting neuron survival (Xu et al., 2006; Islam, 2025).
    • Quercetin:
      • Food Sources: Red onions, apples, kale, berries (Hollman & Katan, 1999).
      • Recommended Intake: 500–1000 mg/day (supplement); 1 medium red onion provides ~10–30 mg.
      • Mechanisms: Inhibits NF-κB and lipoxygenase, reducing neuroinflammation; scavenges ROS, protecting neurons (Javadi et al., 2017; Middleton et al., 2000).
    • Resveratrol:
      • Food Sources: Red grapes, red wine, blueberries, dark chocolate.
      • Recommended Intake: 100–500 mg/day (supplement); 1–2 glasses red wine provides ~1–5 mg.
      • Mechanisms: Scavenges ROS, reducing oxidative damage; inhibits IL-6 and NF-κB, alleviating neuropathic inflammation (Meng et al., 2021).
  • Practical Notes: Include green tea (without milk) and red onions in diets. Monitor DN4 and pain scores after 4–12 weeks.

11. Brain Trauma (Including Stroke)

  • Pathophysiology: Oxidative stress and inflammation cause neuronal damage, leading to neuropathic pain and central sensitization (Rudrapal et al., 2022).
  • Polyphenol Interventions:
    • EGCG:
      • Food Sources: Green tea, black tea, matcha; avoid milk (Hollman & Katan, 1999).
      • Recommended Intake: 200–400 mg/day (supplement); 2–4 cups green tea; avoid >1200 mg/day (Islam, 2025).
      • Mechanisms: Scavenges ROS, reducing neuronal damage; inhibits COX-2 and NF-κB, alleviating neuroinflammation; promotes autophagy and mitochondrial function, supporting neuron survival (Xu et al., 2006; Islam, 2025).
    • Quercetin:
      • Food Sources: Red onions, apples, kale, berries (Hollman & Katan, 1999).
      • Recommended Intake: 500–1000 mg/day (supplement); 1 medium red onion provides ~10–30 mg.
      • Mechanisms: Inhibits NF-κB, lipoxygenase, and NOS, reducing neuroinflammation; scavenges ROS, protecting neurons (Javadi et al., 2017; Middleton et al., 2000).
    • Resveratrol:
      • Food Sources: Red grapes, red wine, blueberries, dark chocolate.
      • Recommended Intake: 100–500 mg/day (supplement); 1–2 glasses red wine provides ~1–5 mg.
      • Mechanisms: Scavenges ROS, reducing oxidative damage; inhibits IL-6 and NF-κB, alleviating neuropathic inflammation; modulates SIRT1, supporting neuroprotection (Meng et al., 2021; Rahman et al., 2020).
  • Practical Notes: Encourage green tea (without milk) and berries. Monitor DN4, NRS, and neurological symptoms after 4–12 weeks.

Practical Recommendations

  • Dietary Incorporation:
    • Aim for 2–3 servings/day: 1 cup berries, 1 medium red onion (for quercetin), 1–2 cups green tea (without milk for kaempferol/EGCG), or 1 tsp turmeric.
    • Enhance bioavailability with healthy fats (e.g., olive oil, avocado) or piperine (black pepper). Avoid milk with green tea to maximize EGCG and kaempferol absorption (Hollman & Katan, 1999).
  • Supplementation:
    • Use liposomal or nanoformulated supplements for better absorption (e.g., liposomal quercetin, curcumin with piperine, nanoparticle EGCG) (Islam, 2025).
    • Start with lower doses (e.g., resveratrol 100 mg/day, EGCG 200 mg/day) and adjust based on tolerance.
    • Consult a healthcare provider for patients on medications (e.g., anticoagulants with resveratrol). Avoid EGCG doses >1200 mg/day due to hepatotoxicity risks (Islam, 2025).
  • Monitoring:
    • Track pain (NRS, DN4 for neuropathic pain), inflammation (CRP, ESR), and oxidative stress markers (ANC, ferritin, malondialdehyde-modified LDL) at baseline and after 4–12 weeks.
    • Monitor for side effects: GI upset (curcumin, resveratrol), dizziness or hepatotoxicity (EGCG), or rare allergic reactions (anthocyanins).
  • Patient Education:
    • Provide handouts listing polyphenol-rich foods (e.g., red onions for quercetin, green tea without milk for EGCG/kaempferol), bioavailability tips, and benefits for pain and neuroprotection.
    • Emphasize long-term dietary habits for sustained benefits, particularly for Alzheimer’s, spinal cord injury, and stroke.

Conclusion

Dietary polyphenols like resveratrol, EGCG, quercetin, curcumin, cyanidin, and kaempferol offer targeted benefits for pain management and neuroprotection across multiple diagnoses. By addressing oxidative stress, inflammation, and neuronal damage through mechanisms like NF-κB, COX-2, lipoxygenase, NOS inhibition, Aβ reduction, and autophagy promotion, these compounds reduce pain and improve patient outcomes. Tailored dietary and supplement strategies, combined with regular monitoring, ensure effective integration into pain management plans.

References

  1. Daily, J. W., Yang, M., and Park, S. (2016). Efficacy of Turmeric Extracts and Curcumin for Alleviating the Symptoms of Joint Arthritis: A Systematic Review and Meta-Analysis of Randomized Clinical Trials. J. Med. Food, 19(8), 717–729. doi:10.1089/jmf.2016.3705
  2. Hollman, P. C., & Katan, M. B. (1999). Dietary flavonoids: Intake, health effects and bioavailability. Food Chem. Toxicol., 37(9–10), 937–942. doi:10.1016/S0278-6915(99)00079-4
  3. Islam, Md. R. (2025). Epigallocatechin 3-gallate-induced neuroprotection in neurodegenerative diseases: molecular mechanisms and clinical insights. Mol. Cell. Biochem., 480, 3363–3383. doi:10.1007/s11010-025-05211-4
  4. Javadi, F., Ahmadzadeh, A., Eghtesadi, S., Aryaeian, N., Zabihiyeganeh, M., Rahimi Foroushani, A., et al. (2017). The Effect of Quercetin on Inflammatory Factors and Clinical Symptoms in Women with Rheumatoid Arthritis: A Double-Blind, Randomized Controlled Trial. J. Am. Coll. Nutr., 36(1), 9–15. doi:10.1080/07315724.2016.1140093
  5. Jin, J., Li, J., Gan, Y., Liu, J., Zhao, X., Chen, J., et al. (2020). Tea Consumption Is Associated with Decreased Disease Activity of Rheumatoid Arthritis in a Real-World, Large-Scale Study. Ann. Nutr. Metab., 76, 54–61. doi:10.1159/000505952
  6. Khojah, H. M., Ahmed, S., Abdel-Rahman, M. S., and Elhakeim, E. H. (2018). Resveratrol as an Effective Adjuvant Therapy in the Management of Rheumatoid Arthritis: A Clinical Study. Clin. Rheumatol., 37(8), 2035–2042. doi:10.1007/s10067-018-4080-8
  7. Lee, C. J., Moon, S. J., Jeong, J. H., Lee, S., Lee, M. H., Yoo, S. M., et al. (2018). Kaempferol Targeting on the Fibroblast Growth Factor Receptor 3-ribosomal S6 Kinase 2 Signaling axis Prevents the Development of Rheumatoid Arthritis. Cell Death Dis, 9(3), 401. doi:10.1038/s41419-018-0433-0
  8. Manach, C., Scalbert, A., Morand, C., Rémésy, C., & Jiménez, L. (2004). Polyphenols: Food sources and bioavailability. Am. J. Clin. Nutr., 79(5), 727–747. doi:10.1093/ajcn/79.5.727
  9. Meng, T., Xiao, D., Muhammed, A., Deng, J., Chen, L., and He, J. (2021). Anti-Inflammatory Action and Mechanisms of Resveratrol. Molecules, 26(1), 229. doi:10.3390/molecules26010229
  10. Middleton, E., Kandaswami, C., & Theoharides, T. C. (2000). The effects of plant flavonoids on mammalian cells: Implications for inflammation, heart disease, and cancer. Pharmacol. Rev., 52(4), 673–751.
  11. Pragasam, S. J., Murunikara, V., Sabina, E. P., and Rasool, M. (2012). Antiperoxidative Potential of P-Coumaric Acid, a Common Dietary Phenol, in Adjuvant-Induced Arthritis in Rats. Zhong Xi Yi Jie He Xue Bao, 10, 932–938. doi:10.3736/jcim20120815
  12. Rahman, M. H., Akter, R., Bhattacharya, T., Abdel-Daim, M. M., Alkahtani, S., Arafah, M. W., et al. (2020). Resveratrol and Neuroprotection: Impact and its Therapeutic Potential in Alzheimer’s Disease. Front. Pharmacol., 11, 619024. doi:10.3389/fphar.2020.619024
  13. Reis, J. F., Monteiro, V. V., de Souza Gomes, R., do Carmo, M. M., da Costa, G. V., Ribera, P. C., et al. (2016). Action Mechanism and Cardiovascular Effect of Anthocyanins: a Systematic Review of Animal and Human Studies. J. Transl. Med., 14(1), 315. doi:10.1186/s12967-016-1076-5
  14. Rudrapal, M., et al. (2022). [Details as per your provided reference list; specific article not fully cited here due to ambiguity, but assumed to be a comprehensive review of polyphenols in pain management].
  15. Xu, Z., Chen, S., Li, X., Luo, G., Li, L., and Le, W. (2006). Neuroprotective Effects of (-)-Epigallocatechin-3-Gallate in a Transgenic Mouse Model of Amyotrophic Lateral Sclerosis. Neurochem. Res., 31(10), 1263–1269. doi:10.1007/s11064-006-9166-z

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“Dopamine for Dinner”

by Joan Borsten, 2014
Available online at Amazon.com: Kindle subscriber: free;  Kindle book: $9.95  Paperback: $149.00

 

“Dopamine for Dinner,” is the first Malibu Beach Recovery Diet Cookbook, based on their famous low-glycemic diet. The recipes developed by four accomplished chefs are both pleasant eating as well as healthy. Based on the use of low glycemic index foods, the recipes emphasize nutritious eating in a manner that promotes maintaining high brain levels of dopamine and serotonin as a means of supporting healthy brain chemistry.

 

Educational Resources:

Recent Uploads

  1. Low- and High-Dose Plant and Marine (n-3) Fatty Acids Do Not Affect Plasma Inflammatory Markers in Adults with Metabolic Syndrome – 2011
  2. The influence of dietary and supplemental omega-3 fatty acids on the omega-3 index- A scoping review – 2023
  3. Association between dietary omega-3 fatty acid intake and all-cause mortality in patients with osteoarthritis- a population-based prospective cohort study – 2024
  4. Omega-3 Supplements_ What You Need To Know _ NCCIH Eicosapentaenoic acid vs. docosahexaenoic acid for the prevention of cardiovascular disease – PubMed – 2022
  5. Fish consumption, omega-3 fatty acid intake, and risk of pain- the Seniors-ENRICA-1 cohort – 2022
  6. Circulating Omega-6 and Omega-3 Polyunsaturated Fatty Acids in Painful Temporomandibular Disorder and Low Back Pain – 2022
  7. Circulating polyunsaturated fatty acids, pressure pain thresholds, and nociplastic pain conditions – 2022
  8. Peritraumatic Plasma Omega-3 Fatty Acid Concentration Predicts Chronic Pain Severity Following Thermal Burn Injury – 2022
  9. Circulating polyunsaturated fatty acids and pain intensity in five chronic pain conditions – 2022
  10. Causal association of polyunsaturated fatty acids with chronic pain- a two-sample Mendelian randomization study – 2023
  11. Do Nutritional Factors Interact with Chronic Musculoskeletal Pain? A Systematic Review – 2020
  12. Advice About Eating Fish (October 2021)
  13. USDA-Food-Composition-Omega-3-Chart
  14. Serial circulating omega 3 polyunsaturated fatty acids and healthy ageing among older adults in the Cardiovascular Health Study- prospective cohort study
  15. Guidelines for Eating Fish that Contain Mercury _ US EPA
  16. 1-s2.0-Evaluation of Cognitive Performance following Fish-Oil and Curcumin Supplementation 2020
  17. Are all n-3 polyunsaturated fatty acids created equal? – 2009
  18. Beyond Fish Oil Supplementation- The Effects of Alternative Plant Sources of Omega-3 Polyunsaturated Fatty Acids upon Lipid Indexes and Cardiometabolic Biomarkers-An Overview – 2020
  19. Current Insights into the Effects of Dietary α-Linolenic Acid Focusing on Alterations of Polyunsaturated Fatty Acid Profiles in Metabolic Syndrome – 2024
  20. Resolvin E1 Inhibits Neuropathic Pain and Spinal Cord Microglial Activation Following Peripheral Nerve Injury _ Journal of Neuroimmune Pharmacology – 2012
  21. Resolvins AT-D1 and E1 differentially impact functional outcome, post-traumatic sleep, and microglial activation following diffuse brain injury in the mouse – ScienceDirect 2015
  22. Docosahexaenoic acid reduces cellular inflammatory response following permanent focal cerebral ischemia in rats – ScienceDirect
  23. Omega-9 fatty acids- potential roles in inflammation and cancer management – 2022
  24. The Anti-Inflammatory Role of Omega-3 Polyunsaturated Fatty Acids Metabolites in Pre-Clinical Models of Psychiatric, Neurodegenerative, and Neurological Disorders – 2020
  25. The role of Omega-3 and Omega-9 fatty acids for the treatment of neuropathic pain after neurotrauma – 2017
  26. Omega-3 Fatty Acids for the Management of Osteoarthritis- A Narrative Review – 2022
  27. Omega-3 Fatty Acids and Neuropathic Pain
  28. A meta-analysis of the analgesic effects of omega-3 polyunsaturated fatty acid supplementation for inflammatory joint pain – 2007
  29. High-dose Omega-3 Alters Serum Magnesium and Calcium Levels and Affects Fibromyalgia Symptoms – 2024
  30. A Green-Mediterranean Diet, Supplemented with Mankai Duckweed, Preserves Iron-Homeostasis in Humans and Is Efficient in Reversal of Anemia in Rats – ScienceDirect
  31. Quantitative evaluation of essential amino acids and omega-3 long-chain polyunsaturated fatty acids from global marine bivalve aquaculture
  32. Alaska Salmon Roe_ Nutritional Information
  33. The Importance of Maintaining a Low Omega-6:Omega-3 Ratio for Reducing the Risk of Autoimmune Diseases, Asthma, and Allergies – 2021
  34. Bivalves as future source of sustainable natural omega-3 polyunsaturated fatty acids – ScienceDirect – 2020
  35. An Update on the Content of Fatty Acids, Dioxins, PCBs and Heavy Metals in Farmed, Escaped and Wild Atlantic Salmon (Salmo salar L.) in Norway – 2020
  36. Current Insights into the Effects of Dietary α-Linolenic Acid Focusing on Alterations of Polyunsaturated Fatty Acid Profiles in Metabolic Syndrome – 2024
  37. Are all n-3 polyunsaturated fatty acids created equal? – 2009
  38. Beyond Fish Oil Supplementation- The Effects of Alternative Plant Sources of Omega-3 Polyunsaturated Fatty Acids upon Lipid Indexes and Cardiometabolic Biomarkers-An Overview – 2020
  39. Nutraceutical Supplements in the Management and Prevention of Osteoarthritis – 2016
  40. Circulating polyunsaturated fatty acids and pain intensity in five chronic pain conditions- 2023
  41. The Role of Neuroinflammation in Complex Regional Pain Syndrome- A Comprehensive Review – 2023
  42. Distinct Analgesic Actions of DHA and DHA-Derived Specialized Pro-Resolving Mediators on Post-operative Pain After Bone Fracture in Mice – 2018
  43. Actions of DHA and DHA-Derived Specialized Pro-Resolving Mediators on Post-operative Pain After Bone Fracture in Mice – 2018
  44. Preventive Supplementation of Omega-3 Reduces Pain and Pro-inflammatory Cytokines in a Mouse Model of Complex Regional Pain Syndrome Type I – 2022
  45. Causal association of polyunsaturated fatty acids with chronic pain- a two-sample Mendelian randomization study – 2023
  46. Nutritional Strategies for Chronic Craniofacial Pain and Temporomandibular Disorders- Current Clinical and Preclinical Insights – 2024
  47. 12 Best Fish Oil Supplements for 2025, According to Experts
  48. Dietary Docosahexaenoic Acid-Rich Supplementation Decreases Neurotoxic Lipid Mediators in Participants with Type 2 Diabetes and Neuropathic Pain – 2024
  49. Dietary Omega-3 Polyunsaturated Fatty-Acid Supplementation Upregulates Protective Cellular Pathways in Patients with Type 2 Diabetes Exhibiting Improvement in Painful Diabetic Neuropathy – 2022
  50. Polyunsaturated Fatty Acids and Chronic Pain- A Systematic Review and Meta-analysis – 2016
  51. Fish oil supplementation reduces osteoarthritis-specific pain in older adults with overweight:obesity – 2020
  52. Effect of omega-3 polyunsaturated fatty acids supplementation for patients with osteoarthritis- a meta-analysis 2023

 

Black Seed

  1. A crossover randomized controlled trial examining the effects of black seed (Nigella sativa) supplementation on IL-1β, IL-6 and leptin, and insulin parameters in overweight and obese women – 2024
  2. Black Cumin (Nigella sativa L.)- A Comprehensive Review on Phytochemistry, Health Benefits, Molecular Pharmacology, and Safety – 2022
  3. Black Cumin (Nigella sativa L.)- A Comprehensive Review on Phytochemistry, Health Benefits, Molecular Pharmacology, and Safety – 2024
  4. Comparing Nigella sativa Oil and Fish Oil in Treatment of Vitiligo – 2004
  5. Effect of saffron, black seed, and their main constituents on inflammatory cytokine response (mainly TNF-α) and oxidative stress status – 2023
  6. Effects of Nigella sativa, Camellia sinensis, and Allium sativum as Food Additives on Metabolic Disorders, a Literature Review – 2021
  7. Nigella sativa L. and Its Active Compound Thymoquinone in the Clinical Management of Diabetes- A Systematic Review – 2022
  8. The effect of Nigella sativa oil on serum levels of inflammatory markers, liver enzymes, lipid profile, insulin and fasting blood sugar in patients with non-alcoholic fatty liver – 2019

 

Dietary Supplement Testing and Safety:

  1. NSF International
  2. USP – Quality Supplements
  3. Consumer Lab

 

Information on Herbal and Dietary Supplements:

  1. NaturalMedicines.com
  2. Herbalgram.com
  3. NCCIH – Herbs at a Glance

Genetically Modified Food

 

Misc.

  1. Simopoulos AP. The importance of the ratio of omega 6/omega 3 essential fatty acids. Biomed Pharmacother. 2002 Oct;56(8):365-379.
  2. LeGendre O, et al. (-)-Oleocanthal rapidly and selectively induces cancer cell death via lysosomal membrane permeabilization. Mol Cell Oncol. 2015 Jan; 2(4):e1006077.
  3. Carvajal-Zarrabal O, et al. Effect of dietary intake of avocado oil and olive oil on biochemical markers of liver function in sucrose-fed rats. Biomed Res Int. 2014;2014:595479.
  4. Unlu NZ, et al. Carotenoid absorption from salad and salsa by humans is enhanced by the addition of avocado or avocado oil. J Nutr. 2005 Mar;135(3):431-436.
  5. Irandoost P, et al. Does grape seed oil improve inflammation and insulin resistance in overweight or obese women?. Int J Food Sci Nutr. 2013 Sep;64(6):706-710
  6. Del Gobbo LC, et al. ω-3 ω-3 polyunsaturated fatty acid biomarkers and coronary heart disease pooling project of 19 cohort studies. JAMA Intern Med. 2016 Aug; 176(8):1155-66.
  7. Carvalho M, et al. Human cancer cell antiproliferative and antioxidant activities of Juglans regia L. Food ChemToxicol. 2010 Jan; 48(1):441-447.
  8. Deol P, et al. Soybean oil is more obesogenic and diabetogenic than coconut oil and fructose in mouse: Potential role for the liver. PLOS One. 2015 June.
  9. O’Keefe S, et al. Levels of trans geometrical isomers of essential fatty acids in some unhydrogenated U. S. vegetable oils. J Food Lipid. 1(3):165-176.
  10. Kritchevsky D, et al. Lectin may contribute to the atherogenicity of peanut oil. Lipids. 1998 Aug;33(8):821-3.

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.

 

For medical-legal reasons, access to these links is limited to patients enrolled in an Accurate Clinic medical program.

 

Should you wish more information regarding any of the subjects listed – or not listed –  here, please contact Dr. Ehlenberger. He has literally thousands of published articles to share on hundreds of topics associated with pain management, weight loss, nutrition, addiction recovery and emergency medicine. It would take years for you to read them, as it did him.

 

For more information, please contact Accurate Clinic.

 

Supplements recommended by Dr. Ehlenberger may be purchased commercially online

Please read about our statement regarding the sale of products recommended by Dr. Ehlenberger.

 

 

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