Lactoglobin is a dietary supplement containing lactoferrin, a protein found in human breast milk and cow's milk. Lactoferrin is abundant in colostrum. It is used to prevent bacterial and viral infections by depriving them of essential nutrients or destroying cell walls. It is used to boost the immune system, prevent tissue damage associated with aging, strengthen intestinal bacteria, prevent cancer, iron deficiency "anemia" as it helps regulate iron absorption and delivery to cells, hair loss, and treat acute diarrhea.