0492ビタミン774mg2018/08/20(月) 17:36:50.50ID:Dw3+QKZu During the past 10 years, the author had found that the optimal dose of Vitamin D3 400 I.U. has safe & effective anticancer effects, while commonly used 2000-5000 I.U. of Vit. D3 often creates a 2-3 time increase in cancer markers.