I read Gundry's book Plant Paradox this past February, just prior to my office visit with my functional and integrative medicine doctor. I asked her if she was familiar with the Plant Paradox book. Her reply was that she read it and considered it worthwhile for improving overall health. Gundry's second book Longevity Paradox follows in the path of his first book, this time focusing on gut health and how to achieve a healthier gut in pursuit of a longer and healthier life. I'm still reading the book, but can say that it offers much scientific information and useful advice to achieve on this subject. Both books are worth having in your personal health and medical library.