This books reads rather well. I had reduced my blood sugar by going on the "Protein Power" course by the group out of Colorado. SBS seems to very similar and should work.
I am having two problems. Firstly, the phone number on the back of the book to reach "Dr." Marlene Merritt is not being answered. 877-755-4904. The other problem that I am having is trying to understand who "Dr." Meritt is. It appears that he's not an MD nor a PhD. All the Letters after her name mean nothing to me and I can't find them on a Google search. I emailed her asking what kind of Dr. she is. No answer but a couple advertisements.
This makes me wonder.
Bottom Line: No, I would not recommend this to a friend