Potential Prebiotic Properties of Whey Protein and Glycomacropeptide in Gut Microbiome.

Proteins in whey have prebiotic and antimicrobial properties. Whey protein comprises numerous bioactive proteins and peptides, including glycomacropeptide (GMP), a hydrophilic casein peptide that separates with the whey fraction during cheese making. GMP has traditionally been used as a protein source for individuals with phenylketonuria and also has prebiotic (supporting the growth of and lactic acid bacteria) and antimicrobial activities.