Similac Advance Stage 1 is an iron-fortified infant milk substitute designed for babies from birth up to 6 months of age. It contains a balanced blend of essential nutrients including Omega-3 and Omega-6 fatty acids (precursors of DHA and ARA), choline, iron, taurine, iodine, zinc and folic acid that support early brain development and overall growth. The formula also includes nucleotides to help support the developing immune system, along with calcium, vitamin D and phosphorus for normal bone development. It is formulated to support easy digestion when prepared as directed. This product should be used under medical advice and prepared hygienically according to the instructions provided on the pack.