Did my masters on Vitamin D - It is very difficult to extract CLINICALLY RELEVANT information from retrospective epidemiological studies. However, there a a few things that are clear: 1. Calcium absorption from the intestine increases with vitamin D supplementation dose up to around 8-10,000 IU D3 daily. 2. 15 minutes of full body exposure in noon sun is equivalent to a dose of ~20,000 IU D3 3. There are few cases of…
Define "full-body exposure", please? I'm not going to walk around naked outside in the sun.