Lactoferrin is a natural iron-binding glycoprotein found in milk, tears, and saliva – which protect areas of the body against pathogens and other environmental pollutants. Lactoferrin is a component of the immune system where it forms part of the innate defence mechanism. Lactoferrin is a key protein found in mothers’milk that supports the health and development of infants. Human and bovine lactoferrin have a high degree in similarity of structure and identical functions.