More Is Not Always Better...

Going to the extremes of anything is not usually the best choice.  The same goes for your vitamin intake.  Make sure you always follow your doctor's advice and recommendations and beyond that adhere to recommended dosages.  Special care must be taken to not consume excessive amounts of fat-soluble A, D, K, and E vitamins that are stored in the body fat as they can impair physical performance and health.  Excess vitamin A and D intake can actually retard growth and permanently damage organs.  But that doesn't mean don't take what you need....Vitamin D is important in promoting calcium absorption for example so make sure you know what you are consuming and what you should consume.  Know too that the best source of any vitamin and mineral is the natural source and that supplements/vitamins should not be your only source of such.