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.

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

“Melatonin supplements are widely thought of as a safe and ‘natural’ option to support better sleep, so it was striking to ...

Supplements sold online contain up to 12.5 times the recommended limit of popular vitamins and minerals, experts have warned. An investigation by Which? found products sold on websites including ...

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 ...

Insomnia has been associated with a higher risk of having a heart attack or stroke. Disrupted circadian rhythms — our body clocks in which melatonin plays a role — and insufficient sleep have been ...

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