Dr. Bo and Dr. Bleu continue to march through the 10 Pillars of Health. Pillar 4 is all about gut health. We are not talking about ways to maintain the perfect beer gut but how do we make sure the lining of our intestines is working like it should. This has been a rapidly progressing and developing topic over the last 10 years as we understand more about how our intestinal lining (gut) interacts with the rest of our body. There is tremendous interaction between the immune system and the hormonal cascade that controls our health (and our weight).