What are some results of vitamin deficiencies?

In today's world of fortified foods, vitamin deficiencies are less common than they used to be -- but shortages still exist. In this video, preventive medicine specialist David Katz, MD, describes some of the problems that can result from vitamin sho

Are you wondering if this popular supplement is a safe way to get more sleep? Get the facts.

Before you stock up at the pharmacy, know that most people can get nearly all their essential vitamins and minerals from food.

Are artificial sweeteners like aspartame and saccharine really a healthy choice?

But people with Crohn’s disease and ulcerative colitis can take steps to help raise vitamin D levels.

They're on sale just about everywhere, but are these teas, pills, powders, and drops a fraud?