Taking high-dose vitamin E supplements long-term can cause serious side effects like bleeding, stroke, and heart failure. Learn safe dosing and warning signs.

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.

We’ve officially reached the time of year when it’s easiest to get sick, which starts at the beginning of autumn and lasts all winter long. If you have kids or a job that requires a lot of in-person ...