Similac® For Spit-Up OptiGro™ Infant Formula with Iron. Abbott. Milk-based. Ready to feed. In healthy infants. Complete nutrition with added rice starch. DHA for brain. Lutein for eyes. Vitamin E for development. Birth-12 months. 1 qt (946 ml). Breast milk is recommended. If you choose to use infant formula, the makers of Similac have a formula that's right for your baby. Gluten free. Galacto-oligosaccharides are prebiotics sourced from milk (GOS). C. Cohnii oil is a source of DHA. M. Alpina oil is a source of ARA. Feeding Expert from Similac®. Help with feeding questions is available at 800-986-8800. feedingexpert.com. Have product-related questions Call 1-800-515-7677, 8:30 am-5:00 pm, Eastern Time, weekdays. www.similac.com. ©2015 Abbott Laboratories.