2'-Fucosyllactose is widely used in the formulation of infant nutrition products, particularly in infant formula, to mimic the composition of human breast milk. It serves as a prebiotic, promoting the growth of beneficial gut bacteria, which supports digestive health and immune system development in infants. Additionally, it is incorporated into dietary supplements and functional foods aimed at improving gut microbiota balance in adults. Its role in enhancing gut health and immunity makes it a valuable ingredient in medical nutrition and wellness products.