I'd like to know where your neuro got his info on vitamin C. To the best of my knowledge vitamin C is an anti-oxidant which supposedly helps rid the body of free radicals. Although I don't think there is any concrete proof that vitamin C prevents or slows the progression of PD, my mother-in-law swears by it as a treatment for all ailments. Greg 47/35/35 Ervin wrote: Went to the neurologist today and in our discussion he asked me what vitamins I was taking. Upon giving him my list which include vitamin C, I got a shock by his response that "vitamin C. causes Parkinson to progress at a faster rate when taking it". He subscribes to a multiple vitamin and that is all. By his thinking I have been wrongly consuming the vitamin for years. I'm curious if this theory shocks other PWP. I hesitate to quit taking it. Any feedback would be appreciated [log in to unmask]