People take vitamins and nutritional supplements in order to live a healthier life. But that doesn't mean they're harmless.
If you take too many of them, they can make you very sick.
The rate of dietary supplement-related calls to poison control centers went up almost 50 percent between 2005 and 2012.
That's according to a recent study published in the journal of medical toxicology
Kim Hutcherson has the story in the video above.