Exactly how to tell if you need more D…vitamin d, that is.
Chan School of Public Health.
Your bones will thank you.
Guille Faingold / Stocksy.
Vitamin D helps the body absorb calcium (the building blocks of bones) from food.
Weaker bones, which can increase your risk of injury, including stress fractures.
Talk to your doc.
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I repeat: sunscreen is not (!!)
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