The Claim

Six months of high-dose omega-3 supplementation (3.6 g/day EPA+DHA) significantly reduces the granulocyte-to-lymphocyte ratio in heavy smokers.

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 omega-3 fatty acids daily for six months lowers the granulocyte-to-lymphocyte ratio in people who smoke heavily.

See the scientific wording

High-dose omega-3 supplementation (3.6 g/day EPA+DHA) for six months significantly reduces the granulocyte-to-lymphocyte ratio in heavy smokers, indicating a shift in immune cell composition toward reduced inflammation and potentially lower cancer risk.

Why this might work

Omega-3 fats replace other fats in cell membranes, which reduces the production of inflammatory chemicals that attract and activate granulocytes. This causes fewer granulocytes to be made or recruited, while lymphocytes survive longer, resulting in a lower ratio of granulocytes to lymphocytes.

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

    Taking 3.6 grams of omega-3 fish oil daily for six months helped heavy smokers reduce a marker of inflammation in their blood by shifting their immune cells to a less inflammatory pattern.

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.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.