Lactoferrin is as important as OPO. Lactoferrin is one of the most important functional whey proteins in breast milk, which promotes the proliferation of intestinal lactic acid bacteria, thus protecting the host from harmful microorganisms. Lactoferrin enables the body to strengthen the immune system to reduce illness, and can promote the absorption of iron, which can effectively prevent the occurrence of anemia. Lactoferrin is a non-heme-binding glycoprotein in breast milk that belongs to the non-specific immune system and is also a core immune protein. OPO, also known as OPO “structural lipids. It is also very useful in the human body as it belongs to the body’s fat structure and is very effective in promoting digestion and absorption and preventing constipation. It also promotes the digestion and absorption of high-quality protein.