Research

Hormonal

Marine-derived n-3 polyunsaturated fatty acid (PUFA) supplementation significantly lowers fasting blood levels of C-reactive protein (CRP), interleukin 6 (IL-6), and tumor necrosis factor alpha (TNF-α) in subjects with chronic non-autoimmune disease, chronic autoimmune disease, and healthy subjects.

If you are dealing with chronic inflammation, adding marine-derived omega-3 supplements (fish oil) can significantly lower inflammatory markers like CRP and IL-6. This benefit is most pronounced in non-obese individuals (BMI < 30) and those with chronic diseases. For general health, it helps, but for significant inflammation reduction, consistency and duration matter.

GoodSupportsHIGH confidence
Marine-derived n-3 PUFAs supplementation had a significant lowering effect on TNF-a, IL-6 and CRP in three groups of subjects (subjects with chronic non-autoimmune disease, subjects with chronic autoimmune disease and healthy subjects).
Kelei Li et al. · PLoS ONE · 2014

Why this rating

Meta-analysis of 68 RCTs with 4601 subjects provides high-quality aggregate evidence, though heterogeneity was noted.

Source

Effect of Marine-Derived n-3 Polyunsaturated Fatty Acids on C-Reactive Protein, Interleukin 6 and Tumor Necrosis Factor α: A Meta-Analysis

Kelei Li et al. · PLoS ONE · 2014

DOI 10.1371/journal.pone.0088103

Meta-analysis · 68 studiesCited 226×
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DOI resolved against Crossref · corpus check 2026-06-10

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