Nestle Lactokid 4 Comfortis Milk From 3-5 Years 1.8 kg is a drink for young children especially designed to support their development needs from 36 months onwards. Contains Lactobacillus reuteri: a good bacteria culture that reduces constipation and maintains a healthy digestive system. Vitamins and minerals: a source of a, b (biotin, pantothenic acid, B1 and B2), C, D and E vitamins and iodine and zinc minerals in the right amounts to encourage good growth and development in your toddler.