(Peter Dazeley/The Image Bank/Getty Images) The "sunshine vitamin" may come with a dark side. Just as a lack of vitamin D can lead to health dangers, so too can an excess. For years now, scientists ...

Dietary supplements enable us to meet our nutritional needs when we can’t do so through food or environment alone – but they should never be taken in excess. Prolonged use of certain supplements in ...

You don't need to sunbathe to get enough vitamin D. Experts reveal how to get the benefits of sun exposure without harming ...

Despite living in an age of abundant food options and supplements, certain vitamin and mineral deficiencies remain surprisingly common – and vitamin D is among the most widespread. Research suggests ...

When the days shorten and the sun sinks low in the sky, that familiar winter slump sets in. There's a fundamental reason for this seasonal fatigue: low levels of vitamin D—the "sunshine vitamin." ...

Add Yahoo as a preferred source to see more of our stories on Google. A Holland Hospital physician says vitamin D toxicity is on the rise and warns Michiganders to watch their dosage this winter.

Julia Ries Wexler is a writer focusing on all things health and wellness. She has over 10 years of experience in health journalism, and though she has written about pretty much every health topic ...

Low levels of vitamin D seem to raise your risk of heart attack but scientists are still figuring out why—and whether supplements might help protect you. Vitamin D is thought to play a protective role ...