Protein hydrolysis is a biochemical process where proteins are broken down into smaller peptides or amino acids. This occurs through the addition of water, which helps to cleave the peptide bonds that link amino acids together. Enzymes, such as proteases, often facilitate this process, making it essential for digestion and various metabolic functions in living organisms. In the human body, protein hydrolysis begins in the stomach and continues in the small intestine. The resulting amino acids can then be absorbed into the bloodstream and utilized for various functions, including tissue repair, hormone production, and energy supply. This process is crucial for maintaining overall health and supporting growth.