Step 1 : Introduction to the question "Where does the process of digestion begin?"
...When humans consume food, digestion begins immediately in the mouth during mastication, or chewing. Mastication breaks food into small pieces and mixes it with saliva. It is then swallowed, passing through the esophagus to the stomach. From there, it enters the small intestine, which absorbs nutrients, such as vitamins and minerals, through the lining of the intestinal wall. Water is mixed with the food in the small intestine for easy breakdown of the particles. Source: Reference.com
