很多店员朋友都知道维生素D可以促进钙的吸收,因而往往以为缺钙是由于缺少维生素D引起的。其实,现代科学研究表明,维生素D在体内可以自行合成,一般情况下,人是不会缺少维生素D的。人之所以缺钙,是因为钙在体内无法完成,只 Many clerks and friends all know that vitamin D can promote the absorption of calcium, and therefore often think that calcium deficiency is caused due to the lack of vitamin D. In fact, modern scientific research shows that vitamin D in the body can synthesize their own, under normal circumstances, people will not lack of vitamin D. The reason why people calcium deficiency, because calcium can not be completed in the body, only