Promise PE GOLD, is fortified to contain a balance of nutrients-vitamin D, vitamin K, calcium, phosphorus, and magnesium-that help build strong bones. Provides an appropriate amount of iron that may help in cognitive abilities. Lactose serves as the sole source of galactose, a key nutrient important for optimal development of the nervous system and myelination, while the long-chain polyunsaturated fatty acids (LCPs) DHA and AA aid in cognition and visual development. Also contains vitamin C, E, zinc and selenium which support the normal function of immune system.