Study casts doubt on whether extra vitamin D prevents disease

Researchers cast doubt on the prevailing wisdom that vitamin D supplements can prevent conditions like cancer, diabetes and heart disease, saying on Friday low vitamin D may be a consequence, not a cause, of ill health.

http://www.foxnews.com/health/2013/12/06/study-casts-doubt-on-whether-extra-vitamin-d-prevents-disease/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+foxnews%2Fhealth+%28Internal+-+Health+-+Text%29