1. What are the ingredients and nutritional value of Abbott Stage 3 milk powder? Abbott Stage 3 milk powder is a formula specially designed for infants and young children. It is rich in ingredients and nutritional value. First, it contains whey protein and casein, two proteins that are necessary for the growth and development of infants and young children. Secondly, it also adds a variety of vitamins and minerals, including calcium, iron, zinc and other elements