• Telomeres, the protective caps at the ends of chromosomes, are an important component of healthy aging.
• One study found that vitamin D supplementation helps to minimize the shortening of telomeres, which happens as people get older, and thus may protect against diseases tied to age and biological aging.
• This data adds to the potential protective components of vitamin D, which experts should consider alongside potential risks and additional research.

Written by Jessica Freeborn on May 28, 2025 — Fact checked by Jill Seladi-Schulman, Ph.D.

read full article