1. What is lactoferrin? Lactoferrin is a natural protein found in milk. It has a high degree of biological activity and nutritional value. Lactoferrin is rich in amino acids, iron, bioactive peptides and other ingredients, which can promote the baby\’s immune development, improve immunity, and promote calcium absorption. 2. Benefits of lactoferrin to babies 1. Promote immune development: Lactoferrin contains a variety of bioactive peptides, which can stimulate the body to produce immunoglobulins and improve the baby\’s immunity. 2. Improve calcium absorption rate: