Excellent, informative read

This book came along at just the right moment for me. One of my sons became gravely ill and sustained trauma to his brain and spine. His neurologist started him on vitamin D3 and informed me that she was going to increase the dose until he was taking 50,000 IUs of D3 daily. My son is 12-years-old and I didn't question the amount. When I saw this book about D3, I decided it was an excellent opportunity to understand more about this vitamin and I'm so glad I did. I saw my health struggles unfolding on the pages. Sleep, obesity, and concerns about developing diabetes were all there. I immediately started to take the recommended optimal dosage and on Day 2 noticed that the cravings that plagued me all day were gone. I'm excited about the other benefits to come.