Aptamil® FMS Human Milk Supplement - for the dietary management of breast-fed premature infants Aptamil® FMS is suitable for the dietary management of premature and newborn infants with low birth weight. The addition of Aptamil® FMS adapts the natural nutrient content of breast milk to the specific nutritional needs of premature infants by enriching it with extensively hydrolyzed protein, carbohydrates, minerals, trace elements, and vitamins. Adding 4.4 g of Aptamil® FMS to 100 ml of breast milk increases the energy content by 15 kcal to approximately 80 kcal. Important note: Breastfeeding is the best nutrition for your baby.