Researchers have found that consuming one gram of omega-3 fatty acids per day may slow down the rate of biological aging in humans. The study, published in Nature Aging, involved over 700 older adults aged 70 and older who participated in a three-year clinical trial.
During the trial, participants consumed either vitamin D or omega-3 fatty acids, or a combination of both, along with a home exercise program. Analysis of blood samples found that omega-3 consumption moderately slowed biological aging across several “epigenetic clocks” by up to 4 months. This effect was not dependent on sex, age, or body mass index.
When the interventions were combined, the impact on lowering cancer risk and preventing frailty increased. The researchers suggest that this is because each intervention works through different but related mechanisms, which reinforce each other when used together.
While the study’s findings are promising, the authors acknowledge that there is currently no standardized measure of biological aging, and their sample only represents Swiss adults aged 70 years and older.
Source: https://medicalxpress.com/news/2025-02-daily-omega-fatty-acids-human.html