Lactoferrin is better to take after meals. Lactoferrin is mostly a protein isolated from fresh cow’s milk. After entering the body, it can effectively help the gastrointestinal tract to carry out absorption and digestion movements, thus breaking down and absorbing various foods and helping to improve the absorption rate of the body. In addition, lactoferrin can effectively prevent iron deficiency anemia, help the body absorb iron and various iron-containing foods, and promote the growth and development of infants and children, especially to promote the intellectual development of the brain of infants and children, and help the mental system of infants and children to develop and grow normally. Lactoferrin is best consumed after meals not only to avoid the effects of lactoferrin on the gastrointestinal tract, but also to increase the absorption rate of lactoferrin, effectively promote the development of the human immune system, improve the personal immunity of infants and children and protect the lives of infants and children.