Can vitamin D supplements really slow ageing, as a recent study suggests?

By Dervla Kelly, Associate Professor, Pharmacology, University of Limerick

Vitamin D supplements could help protect the caps on our chromosomes that slow ageing, sparking hopes the sunshine vitamin might keep us healthier for longer, a recent study suggests.

The researchers discovered that taking 2,000 IU (international units, a standard measure for vitamins) of vitamin D daily helped maintain telomeres – the tiny structures that act like plastic caps on shoelaces, protecting our DNA from damage every time cells divide.

Telomeres…

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