Can fish oil slow down aging?
Dose–response relationship of dietary Omega-3 fatty acids on slowing phenotypic age acceleration: a cross-sectional study
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
The benefit of Omega-3 plateaus at 1.103g/day — no extra gain from higher doses.
Most people assume more supplements = more benefits, and many health influencers push 2–3g daily. This study shows diminishing returns at just over 1g — contradicting common supplement advice.
Practical Takeaways
Aim for 1.1 grams of Omega-3 daily from fatty fish like salmon, sardines, or mackerel — or a high-quality supplement if you don’t eat fish.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
The benefit of Omega-3 plateaus at 1.103g/day — no extra gain from higher doses.
Most people assume more supplements = more benefits, and many health influencers push 2–3g daily. This study shows diminishing returns at just over 1g — contradicting common supplement advice.
Practical Takeaways
Aim for 1.1 grams of Omega-3 daily from fatty fish like salmon, sardines, or mackerel — or a high-quality supplement if you don’t eat fish.
Publication
Journal
Frontiers in Nutrition
Year
2024
Authors
Dongzhe Wu, Yishuai Jia, Yujia Liu, Mingyu Shang
Related Content
Claims (6)
Taking a daily omega-3 supplement might help your body age more slowly, making you biologically 3 to 4 months younger after three years compared to not taking it.
People with high blood pressure might benefit more from eating Omega-3s—like fish oil—because it could help them age more slowly compared to people with normal blood pressure.
Eating more than about 1.1 grams of Omega-3s a day doesn't slow down aging any more than that amount already does — after that point, extra Omega-3s don't help.
People who eat more Omega-3s (like fish oil) seem to age more slowly, but this effect is stronger in Black and White adults than in Mexican American adults — suggesting that how Omega-3 affects aging might be different by ethnicity.
People who eat more Omega-3 fatty acids, like those found in fish, tend to age more slowly according to a biological age measure. For every extra gram of Omega-3 they eat daily, their biological age looks about 0.07 years younger than expected.