A new study found that levels of Vitamin D in the blood of higher than 40ng/ml correlated with a 67 percent lower risk of cancer than those with blood levels less than 20ng/ml.  THAT MEANS THAT YOUR CANCER RISK IS CUT MORE THAN HALF WITH VITAMIN D. I personally recommend having levels between 70-100ng/ml for better health.  Most of us don't get enough Vitamin D because our lat ...