Safe Upper Levels for Vitamins and Minerals: What You Need to Know
When are you getting too much of a good thing?
If a little is good, most Americans are accustomed to thinking, more must be better and a lot must be better still. When it comes to vitamins and minerals, however, it is possible to get too much of a good thing—especially if some of your nutrients are coming from pills instead of food. “Remember that most of your vitamin and mineral needs can be safely met by a thoughtful diet,” cautions Irwin H. Rosenberg, MD, editor of the Tufts Health & Nutrition Letter. “The use of so-called ‘dietary supplements’ will always be associated with some degree of risk.”