Does breast milk contain lactoferrin?

Human milk contains lactoferrin.

Lactoferrin is a protein with antibacterial, antiviral, and immune-modulating properties. It is present in relatively high amounts in human milk. As an important component of breast milk, lactoferrin belongs to the transferrin family and is an iron-binding glycoprotein. Lactoferrin can bind and transport iron ions, aiding in infant growth and development. It also helps prevent intestinal infections in infants and promotes the maturation of their immune system. Additionally, lactoferrin has antioxidant effects, helping to protect infants from damage caused by free radicals.

The concentration of lactoferrin in human milk is very high, especially in colostrum, where it can reach several grams per liter. Lactoferrin protects infants' immune health by competing with pathogenic microorganisms for iron sources and defending against microbial invasion. Moreover, lactoferrin possesses multiple bioactive functions, including promoting iron absorption and participating in immune regulation. Therefore, breastfeeding not only provides essential nutrients to newborns but also offers significant immune protection.