Slight but Measurable Effect
A daily multivitamin may subtly slow down the body’s aging process, according to new research. The findings, while modest, add to the growing body of evidence exploring the relationship between nutrition and healthy aging – a topic of increasing importance as global populations age.
Sara Hägg, Associate Professor of Molecular Epidemiology at the Karolinska Institutet, has studied the results. “The biological clock appears to have ticked a little slower for those who took the multivitamin,” she said.
However, the effect is small, equating to only two to four months of slower aging over the two-year study period. The effect appeared more pronounced in participants who initially had a faster biological clock than average.
Multivitamins Are Not a Guarantee for Longer Life
According to Hägg, participants whose biological clocks aged faster may have had deficiencies in certain nutrients that the multivitamins helped to address.
“Those who didn’t have deficiencies to begin with didn’t really benefit from the multivitamin tablets,” she said.
Even though the study suggests that multivitamins can slightly slow down certain biological clocks, Hägg sees no connection to them extending lifespan.
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The research, published March 22, 2026, highlights the complex interplay between nutrition and the aging process, and suggests that personalized approaches to supplementation may be most effective.
