WHO Guideline for complementary feeding of infants and young children 6-23 months of age

Complementary feeding, defined as the process of providing foods in addition to milk when breast milk or milk formula alone are no longer adequate to meet nutritional requirements, generally starts at age 6 months and continues until 23 months of age. This is a developmental period when it is critical for children to learn to accept healthy foods and beverages and establish long-term dietary patterns. It also coincides with the peak period for risk of growth faltering and nutrient deficiencies.