Surveys have shown that one in three people occasionally or even constantly suffers from intestinal issues such as constipation, bloating, or diarrhea. The causes are varied. Viennese gut doctor Gerhard Wallner takes the reader on an exciting journey into the intestines and their bacteria, revealing what causes these problems and what effects they can have on overall health. The physician has developed a simple program that can restore gut health in just eight weeks, promoting not only healthy digestion but also overall well-being, increased energy, and a better figure.