What is the primary source of nutrition for infants during the first year of life?

Breast milk or formula is the primary source of nutrition for infants during their first year of life. During this critical period, infants have specific dietary needs that are best met through these sources, as they provide the essential nutrients, vitamins, and minerals required for growth and development.

Breast milk contains a perfect balance of proteins, fats, carbohydrates, and antibodies that help in both nourishing the infant and supporting their immune system. For those who cannot be breastfed or when supplementation is needed, infant formulas are designed to closely resemble the nutritional profile of breast milk, ensuring that infants receive adequate nourishment.

Introducing solid foods is generally recommended around six months of age, but this should be done alongside continued breastfeeding or formula feeding, as these provide the primary nutrition during the first year. Cow's milk and vegetable purees are not appropriate first foods for infants under one year old because they do not provide the same essential nutrients and can sometimes cause digestive issues or allergic reactions.