Reviews for Doug Kaufmann's "The Fungus Link" are available on Amazon.com and Goodreads.com and from Barnes and Noble. The author's website, "Know The Cause," also has reviews of the book.
Some Amazon.com reviews were made by people who purchased the book before posting a review, so these reviews may be more reliable. The majority of reviews on all of the recommended websites are positive, but there are some negative opinions expressed for a variety of reasons. The medical community has differing opinions regarding the information provided by "The Fungus Link," but many readers have found the advice to be helpful.