Research shows that inflammation in the gut is the beginning of many diseases. That makes healing the gut a primary focus of medicine. The initial healthy status of the gut of a baby comes from its mother’s breast milk. Apparently, sugars known as human milk oligosaccharides play a key role. Now, companies are trying to manufacture the sugars outside the human body. Unlike typical sugar found in food, human milk sugars can’t be digested by people and don’t make food sweet; instead, they feed beneficial bacteria in the gut.