Dr. Stengler has done it again: he has deciphered and demystified the true health impact of a 'leaky gut' The gut is so much more than the epicenter of. digestion. It is the first line of defense and protection from the outside world. Each day we fuel our bodies with food and drink,. and we depend on the innate wisdom and integrity of our GI tract and the microbiome to moderate and mitigate what enters our bloodstream and inner. workings. Expanding on the concept of leaky gut-leaky brain, Dr. Mark gives you a. play-by-play on how a leaky gut impacts. each cell of your body. This book is a must-. have to know the real truth about leaky gut and overall gut health."