People who eat more Omega-3s, especially men and those over 60, seem to age more slowly based on a biological aging score. Men appear to benefit more even with smaller amounts of Omega-3s than women do.

We analyzed the available evidence and found that higher Omega-3 intake appears to be linked with slower biological aging in older men, more so than in women. The evidence we’ve reviewed suggests that men over 60 who consume more Omega-3s tend to show a lower biological aging score — a measure that reflects how quickly the body is aging at a cellular level — compared to women with similar intake [1]. Even with smaller amounts of Omega-3s, men in this age group seem to experience a stronger association with slower aging markers. We did not find any studies that contradicted this pattern. However, the total number of assertions analyzed was limited to just one, and while it is supported by 48.0 instances of evidence, we cannot determine whether this relationship holds across different populations, diets, or health conditions. The term “biological aging score” refers to a combination of biomarkers — like telomere length or DNA methylation patterns — that researchers use to estimate how fast a person’s body is aging, not just how old they are in years. We don’t know why men might respond differently than women, and we can’t say whether Omega-3s are directly causing this effect or if other lifestyle factors are involved. The evidence we’ve reviewed so far leans toward a stronger link in older men, but we don’t yet have enough data to understand the full picture. If you’re an older man looking to support healthy aging, including Omega-3-rich foods like fatty fish, flaxseeds, or walnuts in your diet may be worth considering — but it’s just one part of a broader approach to health.