03/10/2026
Can a daily multivitamin slow biological aging? New research suggests it might, but the effect is modest. A large randomized clinical trial looked at nearly 1,000 adults with an average age of about 70 and followed them for two years. Researchers measured biological aging using epigenetic clocks, which track changes in DNA that occur as we age. The group taking a daily multivitamin showed a slightly slower pace of biological aging, roughly four months less biological aging over two years compared to the placebo group. Here are the key takeaways from the study: • A daily multivitamin may slightly slow biological aging markers. • The benefit was small but measurable. • Some markers linked to mortality risk and long-term health outcomes improved slightly. • Participants who appeared to be biologically aging faster at the start of the study saw larger improvements, suggesting nutrient gaps may play a role. But there are important limitations. The effect was modest, and only two of five biological aging measurements showed improvement. Researchers emphasize that supplements are not a replacement for healthy lifestyle habits. The strongest drivers of healthy aging are still: • Nutrient-dense diet • Regular physical activity • Quality sleep • Metabolic health • Stress management A multivitamin may help fill nutritional gaps, but it should be seen as supportive, not foundational. Small habits add up over time. Supporting your body with proper nutrition, movement, and recovery still matters most.
