Diegstion sdgooden 10 years ago We learned that food starts in the mouth with the teeth, the tongue, and saliva, then moves down our esophagus into the stomach, then to the small intestine, the large intestine, and then out as waste. Share/Like This: Email a link to a friend (Opens in new window) Email Print (Opens in new window) Print Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X