Complementary Feeding: Building the Foundation for Lifelong Health

Complementary Feeding (CF) marks a critical transition in infancy when breast milk alone no longer meets a baby’s growing nutritional needs. This stage not only bridges important nutrient gaps but also plays a central role in shaping eating behaviors, food preferences, and immune development. The article provides an evidence-based overview of CF—covering optimal timing and readiness cues, progression of textures and flavors, and the role of diverse, nutrient-dense and allergen-containing foods. It also includes an overview of the latest 2025 EAACI updates on the role of CF in allergy prevention. Highlighting how early-life nutrition influences long-term health, the article offers practical guidance to support safe, balanced, and developmentally appropriate feeding practices for infants.