Plus, who might need it and how to get enough.

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." ...

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 ...

Few nutrients seem to get as much attention as vitamin D does. Taking a supplement has been touted as an effective way to slow overall aging and protect against heart disease and cancer, although ...

Plus, how to get what you need.

DEAR DR. ROACH: My blood work showed that I was slightly low in vitamin D, so my doctor recommended that I take a supplement. My pharmacist was concerned and told me that vitamin D does not get ...

Should you take vitamin D with magnesium and vitamin K2? Here’s how these supplements work together, plus safety tips and ...