A 2024 study found that slowing biological aging required at least 1 gram of omega-3 per day for women, but occurred at around 461 mg per day for men.
"Another study that was actually published pretty recently in 2024— this study also looked at omega-3 intake, both, you know, dietary, supplemental intake, and found that omega-3 did slow biological aging, and the dose really mattered, and this was based on gender. So, for women, it took about at least 1 gram of omega-3 to start to slow biological aging in women, whereas for men, it actually happened at a lower dose. It happened at around 461 milligrams a day." (said at 0:21:04)
The host accurately identifies a 2024 cross-sectional study analyzing dietary omega-3 intake and phenotypic biological age acceleration (PhenoAgeAccel) using NHANES data (PMID 39296507). That study demonstrated a significant linear association between higher omega-3 intake and slowed biological age acceleration, identifying an overall threshold effect around 1.1 grams/day where benefits plateau. However, the host overstates the design and findings by framing cross-sectional observational associations as direct causal evidence ('slowing biological aging required at least 1 gram...') and citing precise gender-specific dose thresholds (1 gram for women, 461 mg for men) that are not established in the published literature. Additionally, cross-sectional observational data cannot prove causal dose requirements for slowing biological aging.
- context: Dose-response relationship of dietary Omega-3 fatty acids on slowing phenotypic age accele… (Frontiers in nutrition 2024)
"Utilizing data from the NHANES from 1999 to 2018, this cross-sectional study included 20,337 adult participants... After adjusting for various potential confounding factors, a significant negative correlation was found between Omega-3 fatty acid intake and PhenoAgeAccel ( β = -0.071; 95% CI: -0.119, -0.024; p = 0.004), indicating that an increase in Omega-3 intake is associated with a slowdown in PhenoAgeAccel... Moreover, threshold effect analysis identified an Omega-3 fatty acid intake threshold (1.103 grams/day), beyond which the impact of Omega-3 intake on accelerated phenotypic aging tends to stabilize." (abstract, results)
pubmedfull study (doi)