Enfalac A+ Infant Formula Step 1 with DHA+ARA is designed for full term infants from birth to 12 months. Enfalac A+ Infant Formula Step 1 contains: 17mg DHA & 34mg ARA: these specific levels may contribute to the visual development of infant. -High in Calcium, Vitamin D & source of Magnesium -Calcium aids in the development of strong bones and teeth. -Magnesium promotes calcium absorption and retention. -Vitamin D helps the body utilize calcium and phosphorus.