For babies born prematurely. Enriched nutrition (Increased protein, vitamins and minerals compared to term infant formula). OptiGro: DHA for brain; lutein for eyes; vitamin E for development. 22 cal/fl oz. Breast milk is recommended. If you choose to use infant formula, the makers of Similac have a formula that's right for your baby. Have product-related questions? Call 1-800-515-7677, 8:30 am-5:00 pm, Eastern time, weekdays. www.Similac.com. Feeding Expert from Similac: Help with feeding questions is available at 800-986-8800. FeedingExpert.com. Gluten free. C. cohini oil is a source of DHA. M. alpina oil is a source of ARA.