Dr. Dean's book is great. I have to get another copy because I gave mine to my niece, who teaches dancing lessons and gets sore muscles. The first time that I heard Dr. Dean speak in a Webinar was about the magnesium that I take, and she supports that one too. I think that she found that out after her book, though.
She's a great lady. I've talked with her through e-mails when I started my particular magnesium.