The Claim

High-dose omega-3 fatty acid supplementation (3.6 g/day of EPA and DHA) for six months significantly reduces plasma C-reactive protein levels by approximately 23% in heavy smokers or former smokers with baseline CRP >2 mg/L, and this reduction persists for at least six months after discontinuation.

Source: Omega 3 supplementation reduces C-reactive protein, prostaglandin E2 and the granulocyte/lymphocyte ratio in heavy smokers: An open-label randomized crossover trial

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
69score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

Taking 3.6 grams of EPA and DHA daily for six months lowers blood levels of C-reactive protein by about 23% in heavy or former smokers with elevated inflammation, and this reduction remains for six months after stopping the supplement.

See the scientific wording

High-dose omega-3 fatty acid supplementation (3.6 g/day of EPA and DHA) for six months significantly reduces plasma C-reactive protein levels by approximately 23% in heavy smokers or former smokers with baseline CRP >2 mg/L, indicating a clinically meaningful reduction in systemic inflammation that persists for at least six months after discontinuation.

Why this might work

Omega-3 fats replace other fats in cell membranes, which stops the production of inflammatory chemicals that signal the liver to make CRP, causing CRP levels in the blood to drop and stay low even after stopping the omega-3s.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Omega 3 supplementation reduces C-reactive protein, prostaglandin E2 and the granulocyte/lymphocyte ratio in heavy smokers: An open-label randomized crossover trial

    This study found that taking 3.6 grams of omega-3 fish oil daily for six months lowered a key inflammation marker (CRP) by 23% in heavy smokers, and the lower inflammation stayed down for six months after they stopped taking it — exactly what the claim says.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

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