Vitamin D may help your body age more slowly, according to a new study. Researchers found that taking a daily vitamin D3 supplement helped protect DNA from damage. In the study, people who took vitamin D had less shortening of their telomeres — the protective caps on DNA that naturally wear down as we get older. That damage is linked to aging and some chronic diseases.
The study followed over 1,000 adults for four years. Those who took 2,000 IU of vitamin D3 daily had almost three years less biological aging compared to those who took a placebo. Omega-3 supplements, which some participants also took, did not show the same benefit. This was the first large trial to show that vitamin D may help protect DNA over time.
Experts say this adds to earlier research showing that vitamin D can reduce inflammation and support immune health. While more studies are needed, vitamin D may be a simple way to support healthy aging. Before starting a supplement, talk to your doctor about the right dose for you.
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Publish Date: 2025-05-27 06:00:00