Vitamin D-3 - 2000 IU 120ct by Metabolic MaintenanceMost patients are deficient in Vitamin D. Even those who live in southern latitudes tend to spend most of their time inside, behind ultra violet protection or use sunscreen, all of which inhibit Vitamin D production. For example, studies show that SPF 8 reduces Vitamin D synthesis by 92. 8% and SPF 15 reduces it by 99%! 2,000 IU Vitamin D is the new daily recommended dose by the NIH as reported at their 2007 conference. The median intake of D 3 in the