Glycyl-L-alanine is commonly used in biochemical research as a model dipeptide to study peptide bond behavior, enzyme interactions, and protein folding mechanisms. It serves as a substrate in enzymatic assays to investigate the activity of proteases and peptidases. In nutritional science, it is utilized to explore peptide absorption and transport in the human body. Additionally, it finds application in the development of synthetic peptides for pharmaceutical purposes, particularly in designing drug delivery systems and bioactive compounds. Its role in studying amino acid metabolism and peptide synthesis also makes it valuable in biotechnology and medical research.