I hate to say it, but the description of that book looks like it is fairly typical anti-science. Books like that usually refer to a lot of scientific studies, but do not tell what the studies actually showed. Instead, they cherry-pick isolated sentences and present them out of context, often to imply that the study showed the opposite of what it really showed. Or they will pick a single study that, for whatever reason, found something that cannot be corroborated or repeated in other studies, but that aberrant study supports whatever the author is trying to claim.
I read the primary scientific literature, and have no desire to read a book that misuses and misrepresents what the actual science says.
http://coolinginflammation.blogspot.com/2014/01/milk-kefir-and-gut-flora.html
Dr. Art Ayers - Milk, Kefir and Gut Flora
Dr. Ayer’s profile of his scientific background.
“I grew up in San Diego and did my PhD in Molecular, Cellular and Developmental Biology (U. Colo. Boulder). I subsequently held postdoctoral research positions at the Swedish Forest Products Research Laboratories, Stockholm, U. Missouri -Colombia and Kansas State U. I was an assistant professor in the Cell and Developmental Biology Department at Harvard University, and an associate professor and Director of the Genetic Engineering Program at Cedar Crest College in Allentown, PA. I joined the faculty at the College of Idaho in 1991 and in 1997-98 I spent a six-month sabbatical at the National University of Singapore. Most recently I have focused on the role of heparin in inflammation and disease.”