To fully appreciate the benefits of glycyl-L-glutamine, it is essential first to understand its components. Glycine is one of the simplest amino acids and plays a crucial role in protein synthesis, particularly in collagen formation. L-glutamine, on the other hand, is the most abundant amino acid in the bloodstream and serves as a critical fuel source for immune cells and enterocytes (intestinal cells). When these two amino acids combine to form glycyl-L-glutamine, the resulting structure boasts enhanced stability and bioavailability, making it an attractive option for supplementation.