Headlines about oxidative damage attributed to taking dosages of Vitamin C in excess of 500 mg per day had many people step back and reconsider their supplemental routines. In addition, similar studies had come to light just prior to the Vitamin C revelation that regularly supplementing Beta Carotene had the potential of causing lung cancer. This however, as it turned out later, only applied to smokers who had used higher doses of synthetic, but not natural sources of beta carotene, which made the use of natural source mixed carotenoids the better choice... Full Text