Michael F. Holick books

The Vitamin D Solution: A 3-Step Strategy to Cure Our Most Common Health Problem (2010)

When I found out that I had a severe vitamin D deficiency my doctor prescribed 50,00 IU's a week of vitamin D3 for 15 weeks. I started the supplements and I started looking for answers... this book is a great resource. It has been several months since I started treatments and my levels are slow...