In a viral video, a microbiolgist warns that Vitamin C supplements like Emergen-C and Airborne don't prevent colds.

Microbiologists and general practitioners explain how the idea that Vitamin C helps prevent against the cold got started, and ...

Science says, if you're already coming down with something, it's too late—and it doesn't work well as a preventative, either.

Many people are likely to be low in magnesium, due to chronic illness, certain medications, or age. Here, experts explain who ...