Similac Advance Organic SimplePac with iron, 1.45 lb. (23.2 oz.) 657 gram powder, unflavored. Advance Organic Infant Formula with Iron. Help your baby reach important milestones with Similac Advance Organic. A wholesome organic formula that provides complete nutrition for your baby's first year. Our exclusive formula has DHA (Omega 3) and ARA (Omega 6) for brain and eye development, lutein for eye health, calcium for strong bones - no palm olein oil, nucleotides to help support the immune system and prebiotics to help promote digestive health. Nutritionally complete, organic, milk-based, iron-fortified infant formula for use as a supplement or alternative to breastfeeding. Unique blend of organic nonfat milk, organic maltodextrin, and organic sugar. Certified USDA Organic. 3,400 calories per container.