Donor milk refers to human breast milk that has been donated by lactating individuals for use by other infants and children who are unable to receive their own mother's milk. This milk is typically collected, pasteurized, and distributed through milk banks or other organizations to ensure safety and quality. Donor milk is often used as a substitute for infant formula in situations where a mother is unable to breastfeed or provide enough milk for her child. Research in this area focuses on the safety, benefits, and potential risks of using donor milk, as well as ethical and social considerations surrounding the practice. Studies have shown that donor milk can provide numerous health benefits for infants, including reduced risk of infections and improved growth and development.