Trending Now - Multivitamins Linked to Slower Biological Aging in Seniors

WHO:

Howard Sesso, epidemiologist at Brigham and Women’s Hospital in Boston, Massachusetts

Steve Horvath, geroscientist at biotechnology company Altos Labs in Cambridge, UK

958 healthy participants in the COSMOS study

WHAT:

A study published in Nature Medicine on March 9th, 2026, suggests that taking a daily multivitamin can slow biological ageing.

The study found that daily multivitamin intake slowed biological ageing in older adults by approximately four months over two years compared to non-users.

The beneficial effect of daily multivitamins was observed in two of five epigenetic clocks used to measure biological age.

WHERE:

The study was conducted in the United States.

WHEN:

The study was published on March 9th, 2026.

Participants were analyzed at three time points: at enrollment, after 12 months, and after 24 months.

WHY:

The aim of the study is to identify ways to not just live longer, but also to live better, according to Howard Sesso.

HOW:

Blood samples were analyzed to calculate biological ages using five epigenetic clocks that measure DNA methylation patterns.

The study was part of a randomized controlled trial known as the COSMOS study.

(UPDATED March 10, 2026 01:25 UTC)

A new study published in Nature Medicine on March 9, 2026, suggests that taking a daily multivitamin can slow biological aging, with researchers analyzing 958 healthy participants in the COSMOS study. Conducted in the United States, the study found that older adults who took multivitamins experienced a slowdown in biological aging by about four months over two years compared to those who did not use them, as measured by two of five epigenetic clocks. According to epidemiologist Howard Sesso, the aim of the study is to find ways to not just live longer, but also to live better.