04.06.2026
Multivitamin biological clock study

Multivitamin biological clock study

Does taking a daily multivitamin impact biological aging?

A recent study suggests that a daily multivitamin may slow biological aging by about four months over a two-year period. This finding raises important questions about the role of multivitamins in promoting healthier aging and their potential benefits for individuals.

Study Overview

The research, published in Nature Medicine, analyzed DNA methylation data from blood samples of 958 participants, who had an average chronological age of 70. Participants were randomized into four groups: one group received a multivitamin and cocoa extract, another received cocoa extract and a placebo, a third group received a multivitamin and a placebo, and the final group received two placebos. The study found statistically significant slowing in two epigenetic clocks that are predictive of mortality.

Key Findings

One of the most notable findings from the study is that those who were biologically older than their actual age benefited the most from multivitamin supplementation. This suggests that multivitamins might play a role in mitigating the effects of biological aging, particularly for older adults who may be experiencing accelerated aging processes.

Expert Insights

Howard Sesso, a key researcher involved in the study, expressed enthusiasm about the results, stating, “It was exciting to see the benefits of a multivitamin linked with markers of biological aging.” He further noted, “A lot of people take a multivitamin without necessarily knowing any benefits from taking it, so the more we can learn about its potential health benefits, the better.”

Funding and Research Context

The study was funded by the National Institutes of Health, highlighting the importance of government support in advancing research on health and aging. The findings open the door to learning more about accessible, safe interventions that could contribute to healthier, higher-quality aging.

Uncertainties and Future Directions

Despite the promising results, details remain unconfirmed regarding the clinical relevance of the findings. It is still unclear who specifically benefits from multivitamin supplementation, and further research is needed to determine the long-term effects of multivitamins on biological aging.

As the study suggests a potential link between multivitamin use and slowed biological aging, it underscores the need for continued investigation into the health benefits of multivitamins. With no known risks associated with taking a multivitamin in the context of the study, the findings may encourage more individuals to consider multivitamin supplementation as part of their health regimen.