This study of 777 people found that 1g a day of omega-3 essential fatty acids slowed down biological aging and that adding 2,000 IU a day of vitamin D and a simple home exercise program increased the benefit.
Over 3 years, the supplements and exercise slowed biological aging 2.9-3.8 months.
Nat Aging. 2025;doi.org/10.1038/ s43587-024-00793-