2'-Fucosyllactose is widely used in infant formula as a key component to mimic the benefits of human milk. It plays a crucial role in supporting gut health by promoting the growth of beneficial bacteria, which helps in strengthening the immune system of infants. Additionally, it aids in preventing infections by acting as a decoy for harmful pathogens, reducing their ability to bind to the gut lining. Its application extends to functional foods and dietary supplements aimed at improving digestive health and overall well-being in both children and adults. Research is also exploring its potential in therapeutic areas, such as managing inflammatory bowel disease and enhancing gut barrier function.