Kellogg's primary nutritional nemesis was meat, which was the devil incarnate -he said it caused constipation (well, no fiber, so maybe he was onto something there), and he was absolutely convinced that meat-eating was the cause of masturbation.
When bacterial contamination occurs during laparotomy (open incisions of the peritoneum), or when gut is traumatically penetrated or ruptured as the result of infection and inflammation (e.g. appendicitis), allowing gas, fecal matter, and bacteria to enter the peritoneal cavity, the result is infection and inflammation of the peritoneum (peritonitis). Exudation of serum, fibrin, cells and pus into the peritoneal cavity occurs, accompanied by pain in the overlying skin and an increase in the tone of the anterolateral abdominal muscles. Given the extent of the peritoneal surfaces and the rapid absorption of material, including bacterial toxins, from the peritoneal cavity, when a peritonitis becomes generalized (widespread in the peritoneal cavity), the condition is dangerous and perhaps lethal. In addition to the severe abdominal pain, tenderness, nausea and/or vomiting, fever and constipation are present.