Core Viewpoint - Breast milk is the best nutrition for infants, providing a balanced diet and unique self-protective properties, which are essential for their growth and development [1] Group 1: Importance of Breast Milk Components - Breast milk contains key components such as A2 protein, HMO (human milk oligosaccharides), and probiotics that help establish a strong self-protective system for infants [1][2] - A2 protein is more digestible than A1 protein, reducing digestive discomfort and inflammation, while also increasing the concentration of GSH (glutathione) by up to 4 times, enhancing antioxidant capacity [2] - HMO acts as a defense mechanism in the gut, promoting beneficial bacteria growth and enhancing the infant's ability to resist infections [3][4] Group 2: Role of Gut Microbiota - A balanced gut microbiota is crucial for infants, as an imbalance can lead to issues like diarrhea, constipation, and weakened immunity [3] - Probiotics, particularly bifidobacteria, are essential for gut health, helping to suppress harmful bacteria and maintain a balanced microbiome [4] Group 3: Guidelines for Choosing Infant Formula - Parents are advised to focus on three key elements when selecting infant formula: A2 protein, HMO, and probiotics, forming the "self-protective golden triangle" [5] - It is recommended to prioritize A2 protein formulas, check for the types and amounts of HMO, and ensure sufficient levels of probiotics, especially bifidobacteria [5] - Regular consultation with pediatricians or nutrition experts is suggested to adjust formula choices based on the infant's growth and nutritional needs [6]