How much vitamin D is enough? Over the past decade ... Others argue that in special cases, such as that of pregnant women, up to 6000 IU/day are needed (Hollis, 2007). The recommendations of ...

In fact, The Endocrine Society recommends that adults with vitamin D deficiency be treated with either 50,000 IU of vitamin D once a week for eight weeks or 6,000 IU daily for eight weeks, followed by ...