The Scientist: Beth Ricanati, M.D., is the YouBeauty Wellness Advisor and physician and founding director of Lifestyle 180, a Cleveland Clinic lifestyle modification program.
Any surplus of the fat-soluble vitamins, A, D, E and K, however, gets stored in your fat cells, which makes it easy to overdose on them—and that can be dangerous. Too much vitamin A, for example, can cause nausea, vomiting, blurry vision, dry skin, headaches, fatigue, an enlarged liver and bone damage. Long-term buildup of E has been linked to internal bleeding.To be clear, OD’ing on water-soluble vitamins isn’t risk-free. Too much vitamin C can tax your kidneys and build up into kidney stones. An overdose of B3 can cause nausea and hives, and B12 can stick around in your liver for years.
Put simply: More doesn’t mean better. If you’re eating a well-balanced diet, especially fruits and vegetables, you should be getting most of your vitamins and nutrients already, so you shouldn’t really need supplements. There are a few exceptions: Many people are deficient in vitamin D, which we get from the sun, and pregnant women should take folate. But in general, supplements are meant to do just that: supplement! They’re not food replacements. Stick to the recommended dosage on the bottle. If you follow the directions and still pee out a vivid vitamin-rich shade of yellow, be happy knowing your body got what it needed.
MORE ON VITAMINS AND SUPPLEMENTS FROM YOUBEAUTY.COM