Natural Anti-Inflammatory Agents Ranked By Pathway
I would not rank these simply from “strongest” to “weakest,” because different compounds affect different inflammatory pathways. A more scientifically useful ranking is by dominant pathway: NF-κB, NLRP3 inflammasome, TNF-α/IL-6, COX/LOX, Nrf2, AMPK/SIRT1, specialized pro-resolving mediators, gut-immune signaling, mast cells, and neuroinflammation.
Evidence grading: A = substantial human RCT/meta-analysis evidence; B = some human evidence plus strong preclinical evidence; C = predominantly animal/cellular evidence.
Master Table
| Rank | Agent | Major pathway(s) | Important inflammatory targets | Evidence |
|---|---|---|---|---|
| 1 | Omega-3 EPA/DHA | Resolution biology | Resolvins, protectins, maresins, eicosanoids | A |
| 2 | Curcumin | NF-κB / NLRP3 | TNF-α, IL-1β, IL-6, COX-2 | A |
| 3 | Ginger | NF-κB / COX / LOX | TNF-α, prostaglandins, leukotrienes | A |
| 4 | Boswellia | 5-LOX | Leukotrienes, NF-κB | A/B |
| 5 | Garlic | NF-κB / redox | CRP, IL-6, TNF-α | A |
| 6 | Berberine | AMPK / NF-κB / NLRP3 | TNF-α, IL-6, IL-1β | A/B |
| 7 | Resveratrol | SIRT1 / AMPK | NF-κB, TNF-α, CRP | A/B |
| 8 | Quercetin | NF-κB / NLRP3 | TNF-α, IL-6, IL-1β | A/B |
| 9 | Nigella sativa | NF-κB / NLRP3 | TNF-α, IL-6, CRP | A/B |
| 10 | Probiotics | Gut–immune axis | TLRs, NF-κB, TNF-α, IL-6 | A/B |
| 11 | Extra-virgin olive oil polyphenols | NF-κB / endothelial | adhesion molecules, CRP | A |
| 12 | Green tea / EGCG | Nrf2 / NF-κB | MAPK, cytokines | B |
| 13 | Sulforaphane | Nrf2 | NF-κB, NLRP3 | B/C |
| 14 | Melatonin | NLRP3 / NF-κB | IL-1β, oxidative inflammation | A/B |
| 15 | Pomegranate polyphenols | NF-κB / redox | CRP, endothelial inflammation | A/B |
| 16 | Coenzyme Q10 | mitochondrial/redox | CRP, IL-6, TNF-α | A/B |
| 17 | Alpha-lipoic acid | redox / NF-κB | CRP, oxidative signaling | A/B |
| 18 | Cinnamon | NF-κB / redox | CRP, IL-6 | A/B |
| 19 | Anthocyanins | NF-κB / vascular | adhesion molecules, cytokines | B |
| 20 | Hesperidin | NF-κB / vascular | TNF-α, CRP | A/B |
| 21 | Palmitoylethanolamide | PPAR-α | mast cells, glia, neuroinflammation | A/B |
| 22 | N-acetylcysteine | glutathione/redox | ROS-sensitive NF-κB | A/B |
| 23 | Arctigenin | NF-κB / AMPK / PPARγ | cytokines, microglia | C + limited human |
| 24 | Luteolin | NF-κB / STAT3 | mast cells, cytokines | C/B |
| 25 | Apigenin | NF-κB / NLRP3 | COX-2, cytokines | C |
| 26 | Fisetin | NLRP3 / senescence | NF-κB, SASP | C |
| 27 | Kaempferol | NF-κB / NLRP3 | MAPK, IL-1β | C |
| 28 | Naringenin | NF-κB / NLRP3 | metabolic cytokines | C/B |
| 29 | Baicalein/baicalin | NF-κB / MAPK | NLRP3, TNF-α | C |
| 30 | Andrographolide | NF-κB / JAK-STAT | cytokines | B/C |
| 31 | Thymoquinone | NF-κB / NLRP3 | IL-1β, TNF-α | C/B |
| 32 | Astaxanthin | Nrf2 / NF-κB | oxidative inflammation | B |
| 33 | Lycopene | redox / NF-κB | vascular cytokines | B |
| 34 | Hydroxytyrosol | Nrf2 / NF-κB | endothelial inflammation | B |
| 35 | Saffron/crocin | NF-κB / redox | cytokines | B |
| 36 | Bromelain | proteolytic/inflammatory mediators | bradykinin, leukocyte signaling | B |
| 37 | Capsaicin | TRPV1 | neurogenic inflammation | B |
| 38 | Taurine | neutrophil/redox | NF-κB, taurine chloramine | B/C |
| 39 | Glycine | GlyR chloride channels | macrophage cytokines | B/C |
| 40 | Zinc | immune/NF-κB regulation | cytokines, CRP | A/B |
| 41 | Magnesium | NF-κB / metabolic | CRP | B |
| 42 | Vitamin D | VDR immune regulation | T cells, macrophages, cytokines | B, inconsistent |
| 43 | Soy isoflavones/genistein | ER / NF-κB | CRP | A/B |
| 44 | Grape polyphenols | NF-κB / endothelial | CRP, adhesion molecules | A/B |
| 45 | Rutin | NF-κB / redox | cytokines | C |
| 46 | Honokiol | NF-κB / STAT3 | NLRP3, cytokines | C |
| 47 | Magnolol | NF-κB / MAPK | cytokines, inflammasome | C |
| 48 | Carnosic acid/carnosol | Nrf2 | NF-κB, COX-2 | C |
| 49 | Beta-glucans | Dectin-1 / innate immunity | macrophages, NK-cell pathways | B/C |
| 50 | Prebiotic fibers | microbiome/SCFAs | Tregs, gut barrier, NF-κB | A/B |
I. NF-κB-Dominant Agents
NF-κB is arguably the most commonly targeted inflammatory transcription factor among natural compounds.
1. Curcumin
Pathways: NF-κB ↓; NLRP3 ↓; COX-2 ↓; TNF-α ↓; IL-1β ↓; IL-6 ↓.
Curcumin belongs near the top because it acts at multiple levels of inflammatory signaling and has considerably more human research than most isolated phytochemicals.
Full Reference:
Gorabi AM, Razi B, Aslani S, et al. Effect of curcumin on C-reactive protein as a biomarker of systemic inflammation: an updated meta-analysis of randomized controlled trials. Phytotherapy Research. 2022;36(1):85-97.
2. Ginger
Pathways: NF-κB ↓; COX ↓; LOX ↓; TNF-α ↓.
A meta-analysis of 16 randomized trials involving 1,010 people found significant reductions in CRP, hs-CRP and TNF-α, although heterogeneity was high and IL-6 was not significantly reduced in that analysis.
Full Reference:
Morvaridzadeh M, Fazelian S, Agah S, et al. Effect of ginger (Zingiber officinale) on inflammatory markers: a systematic review and meta-analysis of randomized controlled trials. Cytokine. 2020;135:155224.
3. Garlic
Pathways: NF-κB ↓; TNF-α ↓; IL-6 ↓; oxidative signaling ↓.
Full Reference:
Darooghegi Mofrad M, Milajerdi A, Koohdani F, Surkan PJ, Azadbakht L. Garlic supplementation reduces circulating C-reactive protein, tumor necrosis factor, and interleukin-6 in adults: a systematic review and meta-analysis of randomized controlled trials. Journal of Nutrition. 2019;149(4):605-618. doi:10.1093/jn/nxy310.
4. Quercetin
Pathways: NF-κB ↓; NLRP3 ↓; TNF-α/IL-6 modulation.
Full Reference:
Mohammadi-Sartang M, Mazloom Z, Sherafatmanesh S, Ghorbani M, Firoozi D. Effects of supplementation with quercetin on plasma C-reactive protein concentrations: a systematic review and meta-analysis of randomized controlled trials. European Journal of Clinical Nutrition. 2017;71(9):1033-1039. doi:10.1038/ejcn.2017.55.
5. Nigella Sativa
Pathways: NF-κB ↓; NLRP3 ↓; TNF-α ↓; oxidative inflammatory signaling ↓.
Full Reference:
Hadi V, Kheirouri S, Alizadeh M, Khabbazi A, Hosseini H. The effect of Nigella sativa on biomarkers of inflammation and oxidative stress: a systematic review and meta-analysis of randomized controlled trials. Journal of Food Biochemistry. 2021.
6. Pomegranate Polyphenols
Pathways: NF-κB ↓; oxidative/endothelial inflammation ↓.
Full Reference:
Shahraki Jazinaki M, Rashidmayvan M, Pahlavani N. The effect of pomegranate juice supplementation on C-reactive protein levels: GRADE-assessed systematic review and dose-response updated meta-analysis of randomized controlled trials. Phytotherapy Research. 2024;38(6):2818-2831.
7. Cinnamon
Pathways: NF-κB ↓; IL-6 ↓; oxidative stress ↓.
Full Reference:
Vallianou N, Tsang C, Taghizadeh M, Davoodvandi A, Jafarnejad S. Effect of cinnamon supplementation on serum C-reactive protein concentrations: a meta-analysis and systematic review. Complementary Therapies in Medicine. 2019;42:271-278.
8. Luteolin
Pathways: NF-κB ↓; AP-1 ↓; STAT3 ↓; MAPK modulation.
Particularly interesting experimentally for mast-cell and neuroinflammatory signaling.
Full Reference:
Aziz N, Kim MY, Cho JY. Anti-inflammatory effects of luteolin: a review of in vitro, in vivo, and in silico studies. Journal of Ethnopharmacology. 2018;225:342-358. doi:10.1016/j.jep.2018.05.019.
II. NLRP3 Inflammasome-Dominant Agents
The NLRP3 inflammasome promotes cleavage of pro-IL-1β and pro-IL-18 through caspase-1.
9. Sulforaphane
Pathways: Nrf2 ↑; NLRP3 ↓; NF-κB ↓.
Full Reference:
Houghton CA, Fassett RG, Coombes JS. Sulforaphane and other nutrigenomic Nrf2 activators: can the clinician’s expectation be matched by the reality? Oxidative Medicine and Cellular Longevity. 2016;2016:7857186.
10. Melatonin
Pathways: NLRP3 ↓; mitochondrial ROS ↓; NF-κB ↓.
Full Reference:
Hardeland R. Melatonin and inflammation—story of a double-edged blade. Journal of Pineal Research. 2018;65(4):e12525.
11. Fisetin
Pathways: NLRP3 ↓; NF-κB ↓; senescence-associated inflammatory signaling ↓.
Fisetin is particularly intriguing because it combines conventional anti-inflammatory effects with senolytic activity in preclinical systems.
Full Reference:
Yousefzadeh MJ, Zhu Y, McGowan SJ, et al. Fisetin is a senotherapeutic that extends health and lifespan. EBioMedicine. 2018;36:18-28. doi:10.1016/j.ebiom.2018.09.015.
12. Apigenin
Pathways: NLRP3 ↓; NF-κB ↓; COX-2 ↓.
Full Reference:
Salehi B, Venditti A, Sharifi-Rad M, et al. The therapeutic potential of apigenin. International Journal of Molecular Sciences. 2019;20(6):1305.
13. Kaempferol
Pathways: NLRP3 ↓; NF-κB ↓; MAPK modulation.
Full Reference:
Calderón-Montaño JM, Burgos-Morón E, Pérez-Guerrero C, López-Lázaro M. A review on the dietary flavonoid kaempferol. Mini Reviews in Medicinal Chemistry. 2011;11(4):298-344.
14. Naringenin
Pathways: NLRP3 ↓; NF-κB ↓; metabolic inflammation ↓.
Full Reference:
Salehi B, Fokou PVT, Sharifi-Rad M, et al. The therapeutic potential of naringenin: a review of clinical trials. Pharmaceuticals. 2019;12(1):11.
15. Thymoquinone
Pathways: NLRP3 ↓; NF-κB ↓; TNF-α ↓; IL-1β ↓.
Full Reference:
Woo CC, Kumar AP, Sethi G, Tan KHB. Thymoquinone: potential cure for inflammatory disorders and cancer. Biochemical Pharmacology. 2012;83(4):443-451.
III. Inflammation-Resolution Pathway
16. EPA + DHA
This arguably deserves the #1 mechanistic position because omega-3 fatty acids can participate in the active resolution—not merely suppression—of inflammation.
EPA → E-series resolvins
DHA → D-series resolvins + protectins + maresins
These mediators can reduce neutrophil recruitment and promote macrophage-mediated clearance and tissue recovery.
Full Reference:
Calder PC. Omega-3 fatty acids and inflammatory processes: from molecules to man. Biochemical Society Transactions. 2017;45(5):1105-1115. doi:10.1042/BST20160474.
IV. 5-Lipoxygenase / Leukotriene Pathway
17. Boswellia Serrata
Major target: 5-LOX → leukotrienes ↓
Boswellic acids are particularly interesting when leukotriene-mediated inflammation is biologically relevant.
Full Reference:
Sengupta K, Alluri KV, Satish AR, et al. A double blind, randomized, placebo controlled study of the efficacy and safety of 5-Loxin for treatment of osteoarthritis of the knee. Arthritis Research & Therapy. 2008;10:R85. doi:10.1186/ar2461.
V. AMPK / SIRT1 / Metabolic Inflammation
18. Berberine
AMPK ↑ → NF-κB ↓ → NLRP3 ↓
Human meta-analytic evidence supports reductions in inflammatory biomarkers, although the trials are heterogeneous.
Full Reference:
Vahedi-Mazdabadi Y, et al. Effects of berberine and barberry on selected inflammatory biomarkers in adults: a systematic review and dose-response meta-analysis of randomized clinical trials. Phytotherapy Research. 2023. doi:10.1002/ptr.7998.
19. Resveratrol
SIRT1 ↑; AMPK ↑; NF-κB ↓.
A 2024 umbrella analysis covering 19 meta-analyses, 81 unique randomized trials, and 4,088 participants found overall reductions in CRP and TNF-α, although individual studies remain heterogeneous.
Full Reference:
Effects of resveratrol on anthropometric indices and inflammatory markers: an umbrella meta-analysis. 2024. PMID:38374352.
20. Arctigenin
AMPK ↑; PPARγ ↑; NF-κB ↓; neuroinflammation ↓.
The anti-inflammatory evidence is compelling preclinically, but far less human evidence exists than for curcumin, omega-3s or ginger.
Full Reference:
Gao Q, Yang M, Zuo Z. Overview of the anti-inflammatory effects, pharmacokinetic properties and clinical efficacies of arctigenin and arctiin from Arctium lappa L. Acta Pharmacologica Sinica. 2018;39(5):787-801. doi:10.1038/aps.2018.32.
VI. Nrf2 / Antioxidant-Response Pathway
21. EGCG
Nrf2 ↑; NF-κB ↓; MAPK modulation.
Full Reference:
Haghighatdoost F, Hariri M. The effect of green tea on inflammatory mediators: a systematic review and meta-analysis of randomized clinical trials. Phytotherapy Research. 2019;33(9):2274-2287.
22. Astaxanthin
Nrf2 ↑; NF-κB ↓; lipid oxidation ↓.
Full Reference:
Fassett RG, Coombes JS. Astaxanthin: a potential therapeutic agent in cardiovascular disease. Marine Drugs. 2011;9(3):447-465.
23. Hydroxytyrosol
Nrf2 ↑; NF-κB ↓; endothelial inflammatory signaling ↓.
Full Reference:
Granados-Principal S, Quiles JL, Ramirez-Tortosa CL, Sanchez-Rovira P, Ramirez-Tortosa MC. Hydroxytyrosol: from laboratory investigations to future clinical trials. Nutrition Reviews. 2010;68(4):191-206.
24. Carnosic Acid / Carnosol
Nrf2 ↑; NF-κB ↓; COX-2 ↓.
Full Reference:
Satoh T, McKercher SR, Lipton SA. Nrf2/ARE-mediated antioxidant actions of pro-electrophilic drugs. Free Radical Biology and Medicine. 2013;65:645-657.
VII. Mitochondrial/Redox Inflammation
25. Coenzyme Q10
Meta-analysis supports reductions in inflammatory biomarkers including CRP, IL-6 and TNF-α in selected populations.
Full Reference:
Fan L, Feng Y, Chen GC, Qin LQ, Fu CL, Chen LH. Effects of coenzyme Q10 supplementation on inflammatory markers: a systematic review and meta-analysis of randomized controlled trials. 2017. PMID:28179205.
26. Alpha-Lipoic Acid
Redox recycling ↑; NF-κB ↓.
Full Reference:
The effect of α-lipoic acid on C-reactive protein level: a meta-analysis of randomized, double-blind and placebo-controlled studies. 2022. PMID:36262716.
27. N-Acetylcysteine
Cysteine → glutathione ↑ → redox-sensitive inflammatory signaling ↓.
Full Reference:
Samuni Y, Goldstein S, Dean OM, Berk M. The chemistry and biological activities of N-acetylcysteine. Biochimica et Biophysica Acta. 2013;1830(8):4117-4129.
VIII. Gut–Immune Inflammatory Pathway
28. Probiotics
Potential mechanisms include:
gut-barrier reinforcement → microbial metabolite changes → TLR modulation → NF-κB modulation → cytokine changes.
An umbrella meta-analysis reported significant pooled reductions in CRP, TNF-α and IL-6, although heterogeneity was very high and effects cannot be generalized across probiotic strains.
Full Reference:
The role of probiotic supplementation in inflammatory biomarkers in adults: an umbrella meta-analysis of randomized controlled trials. 2023. PMID:37698776.
29. Prebiotic Fibers
Fiber → microbiome fermentation → butyrate/other SCFAs → Treg and epithelial effects.
Full Reference:
Makki K, Deehan EC, Walter J, Bäckhed F. The impact of dietary fiber on gut microbiota in host health and disease. Cell Host & Microbe. 2018;23(6):705-715.
30. Beta-Glucans
Dectin-1 → innate immune modulation.
They are better characterized as immunomodulatory rather than purely anti-inflammatory.
Full Reference:
Vetvicka V, Vetvickova J. β-Glucan: supplement or drug? From laboratory to clinical trials. Molecules. 2019;24(7):1251.
IX. Vascular / Endothelial Inflammation
31. Extra-Virgin Olive-Oil Polyphenols
NF-κB ↓; endothelial adhesion molecules ↓; oxidative inflammatory signaling ↓.
Full Reference:
Konstantinidou V, Covas MI, Muñoz-Aguayo D, et al. In vivo nutrigenomic effects of virgin olive oil polyphenols within the frame of the Mediterranean diet: a randomized controlled trial. FASEB Journal. 2010;24(7):2546-2557.
32. Anthocyanins
NF-κB ↓; endothelial oxidative signaling ↓.
Full Reference:
Sangsefidi ZS, Hasanizadeh S, Hosseinzadeh M. Effect of purified anthocyanins or anthocyanin-rich extracts on C-reactive protein levels: a systematic review and meta-analysis of randomised clinical trials. British Journal of Nutrition. 2018;120(12):1406-1414.
33. Hesperidin
Endothelial inflammation ↓; NF-κB ↓; TNF-α modulation.
Full Reference:
Effects of hesperidin supplementation on inflammation and oxidative stress in adults: a systematic review and meta-analysis. British Journal of Nutrition. 2026.
34. Grape Polyphenols
NF-κB ↓; endothelial activation ↓; CRP modestly ↓.
Full Reference:
The effect of grape products containing polyphenols on C-reactive protein levels: a systematic review and meta-analysis of randomised controlled trials. British Journal of Nutrition. 2021. PMID:32921322.
35. Lycopene
Oxidative/endothelial inflammatory signaling ↓.
Full Reference:
Story EN, Kopec RE, Schwartz SJ, Harris GK. An update on the health effects of tomato lycopene. Annual Review of Food Science and Technology. 2010;1:189-210.
X. Mast-Cell / Neuroinflammatory Pathway
36. Palmitoylethanolamide
PEA is particularly interesting for:
PPAR-α activation → mast-cell modulation → microglial modulation → neuroinflammation ↓.
Human trials make PEA substantially more clinically developed than many isolated flavonoids.
Full Reference:
Palmitoylethanolamide supplementation for human health: a state-of-the-art systematic review of randomized controlled trials in patient populations. Brain, Behavior, & Immunity – Health. 2025; doi:10.1016/j.bbih.2024.100927.
37. Capsaicin
TRPV1 activation/desensitization → neurogenic inflammation and nociceptive signaling ↓.
Full Reference:
Fattori V, Hohmann MSN, Rossaneis AC, Pinho-Ribeiro FA, Verri WA Jr. Capsaicin: current understanding of its mechanisms and therapy of pain and other pre-clinical and clinical uses. Molecules. 2016;21(7):844.
XI. Proteolytic/Bradykinin-Associated Pathway
38. Bromelain
Bromelain differs markedly from flavonoids because it consists of proteolytic enzymes. Proposed effects include inflammatory cell signaling and modulation of bradykinin-associated processes.
Full Reference:
Brien S, Lewith G, Walker A, Hicks SM, Middleton D. Bromelain as a treatment for osteoarthritis: a review of clinical studies. Evidence-Based Complementary and Alternative Medicine. 2004;1(3):251-257.
XII. Additional Cytokine/NF-κB Modulators
39. Andrographolide
NF-κB ↓; JAK/STAT modulation.
Full Reference:
Lim JCW, Chan TK, Ng DSW, Sagineedu SR, Stanslas J, Wong WSF. Andrographolide and its analogues: versatile bioactive molecules for combating inflammation and cancer. Clinical and Experimental Pharmacology and Physiology. 2012;39(3):300-310.
40. Baicalin / Baicalein
NF-κB ↓; MAPK ↓; NLRP3 ↓.
Full Reference:
Li-Weber M. New therapeutic aspects of flavones: the anticancer properties of Scutellaria and its main active constituents wogonin, baicalein and baicalin. Cancer Treatment Reviews. 2009;35(1):57-68.
41. Honokiol
NF-κB ↓; STAT3 ↓; NLRP3 modulation.
Full Reference:
Fried LE, Arbiser JL. Honokiol, a multifunctional antiangiogenic and antitumor agent. Antioxidants & Redox Signaling. 2009;11(5):1139-1148.
42. Magnolol
NF-κB ↓; MAPK modulation.
Full Reference:
Shen JL, Man KM, Huang PH, et al. Honokiol and magnolol as multifunctional antioxidative molecules for dermatologic disorders. Molecules. 2010;15(9):6452-6465.
43. Rutin
NF-κB ↓; ROS ↓; cytokine signaling ↓.
Full Reference:
Ganeshpurkar A, Saluja AK. The pharmacological potential of rutin. Saudi Pharmaceutical Journal. 2017;25(2):149-164.
44. Saffron / Crocin
NF-κB and oxidative-inflammatory pathways.
Human biomarker evidence is considerably less convincing than its preclinical pharmacology.
Full Reference:
Ghaderi A, et al. The effects of saffron (Crocus sativus L.) on mental health parameters and C-reactive protein: a meta-analysis of randomized clinical trials. Complementary Therapies in Medicine. 2020;48:102250.
XIII. Amino-Acid / Innate Immune Regulation
45. Taurine
One fascinating mechanism is:
neutrophil MPO + taurine → taurine chloramine
Taurine chloramine can suppress production of several inflammatory mediators.
Full Reference:
Marcinkiewicz J, Kontny E. Taurine and inflammatory diseases. Amino Acids. 2014;46(1):7-20.
46. Glycine
Glycine receptors on macrophages and other immune cells can hyperpolarize cellular membranes and alter inflammatory activation.
Full Reference:
Zhong Z, Wheeler MD, Li X, et al. L-Glycine: a novel antiinflammatory, immunomodulatory, and cytoprotective agent. Current Opinion in Clinical Nutrition and Metabolic Care. 2003;6(2):229-240.
XIV. Micronutrient Immunoregulators
47. Zinc
NF-κB/innate immunity modulation.
It is particularly important to distinguish correcting deficiency from taking pharmacologic doses in an already zinc-replete person.
Full Reference:
Mousavi SM, Djafarian K, Mojtahed A, Varkaneh HK, Shab-Bidar S. The effect of zinc supplementation on plasma C-reactive protein concentrations: a systematic review and meta-analysis of randomized controlled trials. European Journal of Pharmacology. 2018.
48. Magnesium
Magnesium deficiency → inflammatory signaling ↑
Replacement may reduce CRP particularly where deficiency or higher baseline inflammatory burden exists.
Full Reference:
Simental-Mendía LE, Sahebkar A, Rodríguez-Morán M, Zambrano-Galván G, Guerrero-Romero F. Effect of magnesium supplementation on plasma C-reactive protein concentrations: a systematic review and meta-analysis of randomized controlled trials. Current Pharmaceutical Design. 2017;23(31):4678-4686.
49. Vitamin D
VDR → macrophage/T-cell regulation → innate/adaptive immune modulation.
Vitamin D has powerful immune biology but is often overrated as a nonspecific anti-inflammatory treatment. Randomized trials have not consistently shown reductions in circulating inflammatory markers in unselected populations.
Full Reference:
Calton EK, Keane KN, Newsholme P, Soares MJ. The impact of vitamin D levels on inflammatory status: a systematic review of immune cell studies. PLoS One. 2015;10(11):e0141770.
50. Soy Isoflavones / Genistein
Estrogen-receptor signaling + NF-κB modulation.
Human meta-analysis suggests modest CRP effects but inconsistent changes in IL-6 and TNF-α.
Full Reference:
The effects of soy supplementation on inflammatory biomarkers: a systematic review and meta-analysis of randomized controlled trials. 2020. PMID:32979840.
Pathway Ranking At A Glance
| Pathway | Particularly interesting natural agents |
|---|---|
| NF-κB | Curcumin, berberine, ginger, quercetin, resveratrol, EGCG, garlic, luteolin |
| NLRP3 inflammasome | Curcumin, sulforaphane, melatonin, berberine, quercetin, fisetin, thymoquinone |
| TNF-α | Curcumin, ginger, garlic, omega-3, berberine, resveratrol, probiotics |
| IL-1β | Curcumin, NLRP3 inhibitors, sulforaphane, thymoquinone, melatonin |
| IL-6 | Curcumin, garlic, probiotics, berberine, omega-3 |
| 5-LOX / leukotrienes | Boswellia, ginger |
| COX/prostaglandins | Ginger, curcumin, apigenin |
| Nrf2 | Sulforaphane, EGCG, hydroxytyrosol, astaxanthin, carnosic acid |
| AMPK | Berberine, resveratrol, arctigenin |
| SIRT1 | Resveratrol |
| PPAR-α | Palmitoylethanolamide |
| PPARγ | Arctigenin, some polyphenols |
| Resolution / resolvins | EPA/DHA |
| Mast cells | PEA, luteolin, quercetin |
| Microglia/neuroinflammation | PEA, luteolin, curcumin, arctigenin, melatonin |
| Gut inflammation | Probiotics, prebiotic fiber, beta-glucans, berberine |
| TRPV1/neurogenic inflammation | Capsaicin |
| Oxidative inflammatory signaling | NAC, ALA, CoQ10, sulforaphane, hydroxytyrosol |
One especially important distinction is that biochemical pathway potency is not the same thing as demonstrated human clinical efficacy. For example, fisetin, arctigenin, honokiol and baicalein have fascinating mechanistic and mammalian data, but curcumin, ginger, probiotics and resveratrol have a much larger human trial literature. Probiotic effects are also highly strain- and disease-specific despite favorable pooled inflammatory-marker results.
If ranking strictly by the combination of human evidence + mechanistic breadth, the first group I would investigate most closely is EPA/DHA, curcumin, ginger, Boswellia, garlic, berberine, resveratrol, quercetin, Nigella sativa, probiotics, olive-oil polyphenols, EGCG, sulforaphane, melatonin and PEA—but the best choice depends on which inflammatory pathway and clinical disorder are actually being targeted.