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A peptide is typically defined as a chain of amino acid monomers （that is a molecule that may chemically attach to other molecules to form a polymer）which are linked by covalent bonds. They are typically split into two groups: long chain peptides, also know as polypeptides or proteins: and short chain peptides, sometimes referred to as ogliopeptides.
Short chain peptides are significantly smaller chains of amino acids. These amino acids are sequentially bonded together to form peptide bonds. These short peptide chains do not contain proteins.
It has been proposed daily nitrogen absorption was significantly enhanced with the small‐peptide compared with the whole protein diet, and that enteral feeding formulas containing small peptides are more efficacious and better tolerated than whole‐protein formulas in critically ill patient.
Full nutrition formula with short peptides protein is a complete enteral formula especially desigened in clinical nutrition therapy for patients who have incomplete Gastrointestinal function, unable or do not want to eat enough food to meet nutrition need of body, which contains 85% premium marine collagen peptide, 10% amino acid and 5% whole‐protein.