Lactoferrin is a multifunctional body protein. Its name is derived from lacto, or milk, because this protein was first discovered in cow's milk. Ferrin refers to iron because lactoferrin has iron-binding and transporting properties. Properties and benefits Lactoferrin is found in nasal, respiratory, and gastrointestinal mucosa, tears, saliva, bile, pancreatic juice, urine, and mucus. A person receives a large amount of lactoferrin by drinking colostrum and breast milk immediately after birth. Although our bodies produce their own lactoferrin, we never consume as high a dose of lactoferrin as we did early in life. In fact, a Western lifestyle that includes a diet rich in processed foods, high levels of (chronic) stress, and exposure to various toxins and pathogens (environmental) can negatively affect a person's lactoferrin stores. How to use lactoferrin? It is recommended to take 1 capsule once a day during or immediately after a meal. Do not exceed the recommended daily dose.