Think of omega‑6 and omega‑3 like two teams sharing the same field. Both are useful. Trouble starts when one team crowds the other out.
Many modern diets are heavy in omega‑6 from fried oils and light on omega‑3 from fish, walnuts, and flax. That tilt can keep inflammatory signals louder.
What the research found
A 2021 meta-analysis of 31 clinical trials found that a lower omega‑6:omega‑3 ratio was linked with lower blood levels of:
- TNF-α
- IL-6
Those are messenger chemicals your body uses when it is inflamed. Lowering them does not fix everything — but it is a good sign.
What this means for you
You do not have to ban every seed oil. Aim for more calm-fat foods most days. GoodFat tracks your omega balance so you can see the trend — not just one meal.
References
- Wei Y, et al. The effects of low-ratio n-6/n-3 PUFA on biomarkers of inflammation: a systematic review and meta-analysis. Food & Function. 2021. https://pubmed.ncbi.nlm.nih.gov/33232407/
- Torres-Vanegas J, et al. Effect of a Diet Supplemented with Marine Omega-3 Fatty Acids on Inflammatory Markers in Subjects with Obesity. Healthcare. 2025. https://doi.org/10.3390/healthcare13020103