Similac For Supplementation Non-GMO Powder 1.45 Lb, Unflavored 2,320 Calories Per Container. Similac For Supplementation Infant Formula with Iron A 19 Cal/fl oz, nutritionally complete, milk-based, iron-fortified formula for breastfeeding moms who choose to introduce formula. For a gentle introduction to formula. Availability Features Preparation Nutrition Ingredients Features: OptiGRO is our exclusive blend of DHA, lutein and vitamin E: these important ingredients are found in breast milk. DHA for brain development. Lutein to support eye health. Vitamin E, an important nutrient found in breast milk to support developing cells. Calcium for strong bones - no palm olein oil. Nucleotides to help support the immune system. Prebiotics to help promote digestive health. Carotenoids naturally found in breast milk. Gluten-free, Kosher, Halal.