Are Vitamin E Supplements Healthy or Harmful?

Dr. John Swartzberg is an internist and specialist in infectious disease and chairman of the editorial board of the UC Berkeley Wellness Letter and berkeleywellness.com. It's been nearly a century since researchers at the University of California, Berkeley discovered vitamin E, and since then, many studies have looked at the potential health benefits of this antioxidant. Over the years, supplement makers and some researchers predicted that vitamin E would help prevent cancer, heart disease and A