June 11, 2017
Great info on importance of Vit DBy Harvey Opps on August 10, 2013
Format: Kindle Edition|Verified Purchase
A lot of good information, original source material and resources. Helped me in my research and decision making. Dosage is not the issue, but maintaining proper blood levels of Vit D is. My own results have shown how little the results move for the current acceptable dosing levels. Find a medical practice that supports current knowledge about importance of Vit D levels