https://blogs.mercola.com:443/sites/vitalvotes/archive/2004/01/13/Too-Much-Vitamin-D-Can-Cause-Cancer.aspxIt is no mystery that vitamin D is an oil soluble vitamin and in large doses may be toxic. So it should come as no surprise that extremely high levels of vitamin D actually caused prostate cancer, just as very low levels can. Vitamin D can have a reverseenCommunityServer 2008.5 SP1 (Debug Build: 31106.3070)