I received a check for a small amount, from a class action lawsuit that I never asked to be a part of. (I purchased the book from an infomercial)
I wanted to send the check back to the author when he went to jail for fraud. The information in this book is ancient, and while not forbidden, anyone that relies on keeping people sick to stay in business might find it offensive and prefer it labeled fraudulent.
While the cures listed in this book aren't legally "cures", it's an excellent guide for wellness and preventative care.