Carnivore is one of the most suitable and easily digestible diets for the human digestive system. Stomach, intestinal enzymes, and bile efficiently break down the proteins and fats in meat into amino acids and fatty acids, which are then absorbed into the bloodstream; in this process, almost no waste remains to be excreted. However, to perfectly digest meat and absorb nutrients, the stomach must maintain a highly acidic pH level of 1.5 to 3.0. Strong stomach acid is necessary to activate pepsin, a protein-digesting enzyme, and for this acidic enzyme to pass into the duodenum, hormones (secretin and cholecystokinin) that stimulate the secretion of pancreatic juice and bile are secreted normally. If stomach acid is insufficient, undigested meat remains stagnant in the intestines and putrefies, causing severe gas, abdominal bloating, and acid reflux (heartburn).