Disialyllacto-N-tetraose is primarily utilized in the field of infant nutrition and health research due to its presence in human milk. It plays a significant role in supporting the development of a healthy gut microbiome in infants, promoting the growth of beneficial bacteria. This compound is also studied for its potential to enhance immune system function, offering protective effects against infections and inflammation. Additionally, it is being explored for its neurodevelopmental benefits, as it may contribute to brain development and cognitive function in early life. Its applications extend to specialized dietary supplements and infant formula formulations aimed at mimicking the composition of human milk for optimal infant health.