Preterm infants fed Similac NeoSure through the first year of life showed significantly increased lean body mass and less fat mass at 12 months corrected age.. Supports excellent catch-up growth during the first year with increased protein, vitamins and minerals compared to term infant formula; increased calories for growth; calcium and phosphorus for growing bones. Supports bigger gains in weight, length and head circumference when compared to term infant formula. OptiGRO™ is Abbott's exclusive blend of DHA (docosahexaenoic acid, an omega-3 fatty acid), lutein and vitamin E.. Lutein, a carotenoid naturally found in colostrum and human milk, has been shown to help support eye health in the preterm infant.. 25% of the fat blend as medium-chain triglycerides (MCT), an easily digested and well-absorbed fat source. No artificial growth hormones. Gluten-free. Halal. Kosher.