Vitamin Megadoses=Danger

Taking a multivitamin? Avoid megadoses.
Large doses of beta-carotene, vitamin A and vitamin E seem to increase the risk of death!

High doses of vitamins and antioxidants are unnecessary and may even be harmful. A multivitamin can help fortify a diet that’s lacking in essential nutrients, but it’s not meant to replace the vitamins and minerals found in fruits, vegetables and whole grains.
Plant-based diets contain thousands of phytochemicals, many of which are related to good health. By relying only on vitamins and fortified foods, you’re missing out on healthful nutrients that are found only in whole foods.
Plus, some studies show that megadoses of nutritional supplements could even increase the risk of certain types of cancer and heart disease.
Your best bet: Stick with a multivitamin that provides no more than 100 percent of your RDAs of beta-carotene and vitamins A and E. Limit highly processed fortified foods, and opt for fruit, seeds, nuts and other whole foods instead.