At least one exception is a book by my friend, Adriane Fugh-Berman, who is a real physician. The book reviews peer-reviewed scientific research on alternative medicines:
Alternative Medicine: What Works: A Comprehensive, Easy-to-Read Review of the Scientific Evidence, Pro and Con
by Adriane Fugh-Berman, M.D. (Paperback) Lippincott, Williams & Wilkins; ISBN: 0683304070
Available from Amazon, among others.
mbs