In today’s supplement-obsessed culture, it’s easy to assume that if something is sold over the counter and marketed as ...

Taking too much vitamin D can cause serious side effects. Learn the signs, why you might feel weird after taking it, and when to talk to your healthcare provider.

Certain vitamins and minerals are essential for building and maintaining healthy bones. Learn more about the benefits of nutrition and supplements for bone health.

Low levels of vitamin D seem to raise your risk of heart attack but scientists are still figuring out why—and whether ...

Probiotics are capsules or pills with live microorganisms—almost always bacteria or yeast—that are supposed to confer health ...

Supplements aren’t reviewed for safety and effectiveness, but disclaimers about health benefits are required on products.