Breast milk is amazing, but it’s naturally low in iron. That’s why the AAP recommends that breastfed babies start iron supplementation at 4 months. For a simple, clean approach, we often suggest an iron-only liquid drop (many families like NovaFerrum or other gentle iron drops), and then transition to real-food iron sources as solids begin—think pureed meats (beef, lamb, turkey), lentils, and beans. Pair iron foods with a little vitamin C (like strawberries or pear) to help absorption.