What is the food that the human body digests and eats?

The food eaten by the human body is digested by the stomach, and the digestive function of the human body depends on the mechanical digestion of gastrointestinal movement and the chemical digestion of digestive enzymes.

Digestive juice contains a lot of digestive enzymes, which can promote the hydrolysis of sugar, fat and protein in food. From macromolecular substances to small molecular substances, which are absorbed and utilized by the human body. Glucose, glycerol, glycerides, amino acids, etc. Are soluble small molecules that can be absorbed by the small intestine.

Extended data

Gastrointestinal tract is mainly controlled by central nervous system (CNS) and enteric nervous system (ENS). Although enteric nervous system is controlled by the central nervous system, it has an independent reflex arc, which has the function of integration and can directly receive all kinds of information in the gastrointestinal tract.

It can be said that it is a relatively independent system, which participates in the regulation of gastrointestinal function; At the same time, the number of nerve cells in the digestive tract wall is second only to that in the brain, so ENS is called the brain of the intestine.

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