Jordan Peterson a Psychology Professor from Tronto. Jordon mentions his battle with chronic immune system dysfunction that both he and his daughter have suffered from for years. One symptom he said was horrible headaches and physical symptoms when they both ate foods that cause both of them inflammation after avoiding the foods for several weeks or months. I think he has a blog that goes into his diet. I don't agree with an all meat or protein diet, I think it's extreme, but it works for him and his daughter. He hasn't had his blood workup yet and I remember reading the all meat diet screws with our hormonal system is we don't eat organ meat along with muscle tissue. The body doesn't need much vitamin C when we are only eating meat. Vitamin C is required when eating a high carb diet. Something I found out when researching Inuit and other meat eating societies diet.