LNFP III is a type of human milk oligosaccharide (HMO) that plays a significant role in infant nutrition and health. It is commonly used in the formulation of infant formula to mimic the composition of human breast milk, providing benefits such as supporting gut health and immune system development. LNFP III acts as a prebiotic, promoting the growth of beneficial gut bacteria like Bifidobacteria, which aids in digestion and reduces the risk of infections. Additionally, it has been studied for its potential to modulate immune responses, offering protection against pathogens and reducing inflammation. Its inclusion in functional foods and supplements is also being explored for its broader health benefits in adults, particularly in improving gut microbiota balance and enhancing immune function.