Your immune system has built-in mechanisms for protecting you from infections. But mega-doses of a popular vitamin may actually make immune cells forget how to fulfill some of their health-promoting functions.

In my previous article I described the healing properties of vitamin A on eyes and skin. I’ll share what I learned while digging deeper into the subject of cosmeceuticals, including the topical vitamin A ingredients.

The descriptions I read about vitamin A, and what’s good what for what illness, gets even me confused. What are they? Does it work for skin? What about eye health?

Just because you consume vitamins doesn’t mean they do you any good. But there’s an important food you should be eating that can help your vitamins keep you healthier.

As research into the health effects of fruits and vegetables accelerates, scientists keep finding new and surprising benefits to the natural chemicals found in certain foods.

If you want your vitamins and other supplements to contribute to a healthy heart and the body’s cancer defenses, you have to choose the right ones. Otherwise, your supplements may be doing you no good. Here’s a guide to what you need to look for in a supplement.