When it comes to heart health, how much is too much vitamin D?
Thursday, January 5, 2012 - 06:30
in Health & Medicine
(Medical Xpress) -- New research by Johns Hopkins scientists suggests that vitamin D, long known to be important for bone health and in recent years also for heart protection, may stop conferring cardiovascular benefits and could actually cause harm as levels in the blood rise above the low end of what is considered normal.