Here's Exactly How Much Vitamin D is Safe, as Man Hospitalized With Intoxication

Vitamin toxicity is more common than you think—here's how to avoid it.

Supplements You Shouldn't Overuse, Say Experts: Zinc, Iron and More

Too much of a good thing can be harmful to your health.

Supplements to Never Take in the Evening: Vitamin D and Calcium, Fish Oil and More

Learn what experts say about taking vitamins at the wrong time of day. 

Too Little Vitamin D Can Be Aging Your Brain Faster, New Study Says—Here's How to Fix It

Learn what a certain vitamin deficiency could mean for your brain health.

The #1 Best Supplement to Boost Motivation, New Study Suggests

According to researchers, this nutritional supplement may support improved performance and effort.

This Spice May Cause Liver Damage, Recent Study Suggests

Turmeric may have adverse effects on your liver, according to a new report.