Når læger har hjerte-til-hjerte-chats med deres ven, adskiller deres vitaminråd ofte fra den medicinske standard.
Clifford Rosen, MD, directs the Center for Clinical and Translational Research at the Maine Medical Center Research Institute in Scarborough, Maine. He also knows a thing or two about vitamin D: He was part of an Institute of Medicine committee that set recommendations for the sunshine vitamin. So he’s astounded when he learns that friends are popping as much as 5,000 IU of the vitamin each day—far higher than the 4,000 IU established as the safe upper limit. Probably 80 percent of the people I know take vitamin D