(Mary Claire Fischer/ Michigan Medicine) — In the supplement world, vitamin D has long been the star.

For decades, it’s been touted as a cure-all supplement — a cheap, easy way to fix health problems ranging from depression to heart disease to even incontinence. After all, all these medical conditions have been tied to low  …

(Kaitlin Sullivan/ NBC News) — Vitamin D supplements are widely recommended to prevent bone fractures in older adults — but a clinical trial, published Wednesday in the New England Journal of Medicine, found that they may not do much after all.

In 2011, the National Academy of Medicine (then called the Institute  …

(Shishira Sreenivas/ Web MD) — Vitamins and minerals are substances your body needs to build energy, help you stay healthy, and function properly. To naturally maintain your day-to-day energy levels, it’s best to get your vitamins from your food. But if you’re not able to meet your daily requirement through food alone,  …