Newborns grow at least 1/4 inch a week during their first month of life. As the maker of Enfamil , we know that vitamin D is a key nutrient to support this early growth. The American Academy of Pediatrics recommends 400 IU of vitamin D daily. Enfamil PREMIUM Newborn provides 400 IU of vitamin D in 27 fl ozclose to the approximate daily intake of a newborn through 3 months. This unique formula also includes our Natural Defense Dual Prebiotic Blend designed to help support babies' own defenses, and its easytodigest proteins are gentle on your baby's tummy. Founded over 100 years ago by Edward Mead Johnson, one of the original founders of Johnson and Johnson, the Mead Johnson company produces more than 70 different products that are distributed in over 50 countries worldwide. Mead Johnson produces baby formula, vitamin and specialty nutritional supplements including Enfamil . Introduced in 1959, Enfamil baby formula has undergone several significant changes since it was invented. Each change brings Enfamil baby formula nutritionally closer to breast milk.