vitamin-D-improves-strength

The research on vitamin D keeps mounting, and the number of uses of vitamin D keep growing. But it is not only the research on vitamin D that is getting stronger, people on vitamin D are too.

Vitamin D was once known only as the sunshine vitamin that was good for your bones. But this valuable vitamin is now known to help everything from cancer, heart disease and diabetes to back pain, asthma and autism. Now research is showing that vitamin D might also make you stronger.

The new study found that in men over fifty, higher levels of vitamin D were correlated with greater hand grip strength. Hand grip strength often begins to decline around age fifty. No benefit was found for women or for men under fifty.

Previous research has also found that vitamin D is related to strength in older people. Elderly people with low levels of vitamin D perform worse on tests of physical performance and grip strength (J Gerontol 2007).

Though the current study did not find benefit for younger people, other studies have. Vitamin D has been shown to improve strength in teenage girls (J Clin Endocrinol Metab 2009;94:559-63) and college athletes (Int J Sport Nutr Exerc Metab 2016;26(6):558-564).

Even girls as young as five have been found to have greater hand grip strength when they have higher levels of vitamin D. For some reason, this study did not find the same benefit for boys (JCEM 2018;103(7):2630-9).

So, while future research still needs to sort out why some studies find different benefit for boys and girls, young and old, current research strongly suggests that vitamin D may make you strong.


Clin Endocrinol (Oxf) 2019;doi: 10.1111/cen.13952


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