5.4

Protein digestion and absorption

Protein digestion starts in the stomach with pepsin breaking down proteins into polypeptides.

In the small intestine, pancreatic enzymes further break down polypeptides into amino acids.

Enterocytes in the small intestine absorb the amino acids, which are then transported to the bloodstream.

Amino acids enter cells for various functions.

Protein absorption requires energy and efficient transport mechanisms.

Factors like stomach acid levels, enzyme function, and small intestine health affect digestion and absorption.

Animal-based proteins are well-digested, while plant-based proteins may require processing.

Understanding these processes emphasizes the importance of consuming quality protein sources and maintaining a healthy digestive system.

Consult a professional for personalized guidance.