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Articles on Vitamin D

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A couple taking in the view from Table Mountain, Cape Town. Getty Images

We found high UV doses at high-altitude hiking trails in Reunion and Cape Town

Too much ultraviolet radiation is dangerous for human health. Excessive exposure can cause skin ageing and sunburn and can induce melanoma, cataracts, ocular melanoma, and immunodeficiency.
Vitamin D is sometimes called the sunshine vitamin. FotoHelin/Shutterstock.com

Why you need more Vitamin D in the winter

Vitamin D is essential for good health and particularly for fighting infections and keeping the microbes in the human gut healthy. But in winter it can be difficult to get enough.
Children play soccer in the small town of Baker Lake, Nunavut in 2009. Research among children with arthritis globally shows that those residing in northern latitudes have abnormally low vitamin D levels. (THE CANADIAN PRESS/Nathan Denette)

Children with arthritis lack vitamin D

A new study points to a clear link between childhood arthritis and abnormally low levels of vitamin D, especially ion northern countries.

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