Vitamin C large dose include nausea, abdominal cramps and diarrhea. These effects are attributed to the osmotic effect of unabsorbed vitamin C passing through the intestine. In theory, high vitamin C intake may cause excessive absorption of iron. A summary of reviews of supplementation in healthy subjects did not report this problem but left as untested the possibility that individuals with hereditary hemochromatosis might be adversely affected. There is a longstanding belief among the mainstream medical community that vitamin C increases risk of kidney stones. "Reports of kidney stone formation associated with excess ascorbic acid intake are limited to individuals with renal
Vitamin B12 "Corynebacterium", "Flavobacterium", "Lactobacillus", "Micromonospora", "Mycobacterium", "Nocardia", "Protaminobacter", "Proteus", "Rhizobium", "Salmonella", "Serratia", "Streptococcus" and "Xanthomonas" . Six Nobel Prizes have been awarded for direct and indirect studies of vitamin B. Vitamin B12 Vitamin B, also called cobalamin, is a water-soluble vitamin that is involved in the metabolism of every cell of the human body: it is a cofactor in DNA synthesis, and in both fatty acid and amino acid metabolism. It is particularly important in the normal functioning of the nervous system via its role in the synthesis of myelin, and in the maturation of developing red blood cells in the