The 50,000 IU weekly dose is the highest possible prescribed dose. Long-term supplementation of vitamin D3 in doses ranging from 5,000 to 50,000 IU appears safe when taken correctly. Many people do ...
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 ...