Taking one gram of omega-3 daily over three years slows biological aging by an average of 2.9–3.8 months, according to a statistical analysis of 777 Swiss participants in a clinical trial. The researchers used DNA methylation clocks to measure the effects. Combining omega-3 with vitamin D (2,000 international units daily) and home exercise had additional benefits, according to one of these clocks. These latest findings add to existing health aging benefits identified in the DO-HEALTH study. This randomized, double-blind, placebo-controlled trial enrolled 2,157 healthy and active men and women aged 70 or older from five European countries.
