Vitamin D and sunlight

Posted by Chantel M. Contributed by US National Library of Medicine National Institutes of Health

According to the study of "Vitamin D and sunlight: strategies for cancer prevention and other health benefits" by Holick MF., posted in US National Library of Medicine National Institutes of Health, researchers found that The active form of vitamin D, 1,25-dihydroxyvitamin D, is made in many different tissues, including colon, prostate, and breast. It is believed that the local production of 1,25(OH)(2)D may be responsible for the anticancer benefit of vitamin D. Recent studies suggested that women who are vitamin D deficient have a 253% increased risk for developing colorectal cancer, and women who ingested 1500 mg/d calcium and 1100 IU/d vitamin D(3) for 4 yr reduced risk for developing cancer by >60%.