Nickel and Vitamin C share common antagonists, as do cobalt and Vitamin B12, whereby Vitamin E inhibits the effects of Vitamin C and nickel, while Vitamin B15 inhibits the effects of Vitamin B12 and cobalt. This inhibiting effect of Vitamin E is not related to the antioxidative properties of Vitamin C - or vice versa -, but they are antagonists ratio-wise to one another, and to other chemical members:... Full Text