When it comes to supplements labeled as “all-natural,” many assume they’re automatically safe. However, experts warn that ...

Medically reviewed by Violetta Shamilova, PharmD More than 50% of adults in the United States use dietary supplements.

Yes, you can take prenatal vitamins with or without plans for pregnancy. However, there are some things to keep in mind.

While vitamin D is vital for bone and immune health, a longevity doctor warns against blindly supplementing. Excessive intake ...

We found supplements being sold with doses way beyond recommended upper safety limits, and taking too much can have serious health consequences ...

Taking certain supplements before surgery can increase bleeding, affect anesthesia, or disrupt blood sugar levels. Learn which dietary and herbal supplements to stop one to two weeks before your ...

A study from the New York Eye and Ear Infirmary of Mount Sinai warns people about the dangers of taking high doses of niacin ...

Several years ago, in my early 80s, my gynecologist told me (like all women who mainly stayed indoors) that I should be taking 4,000 IU of vitamin D3 daily. Yet today, I read an article warning that ...

Dear L.M.: Overdosing on vitamin D is dangerous. Last month, I had a patient who had elevated levels of calcium, which caused ...