Vitamins can very well lead to vitaminosis and thereby impair removal of uric acid and bring on a gout attack. Synthetic vitamins are harmful to the body, not just because of the binders prevention proper absorption. For details on the vitamin subject, please refer to my book The Key to Health and Rejuvenation, www.1stbooks.com. Extracting vitamins from food renders them harmful, leaving them in the food makes them accessible and useful for the body. There are essential substances in natural foods that prevent the acidic vitamins from causing damage to the body.