Providing proper nutrition and stimulation at this critical time will positively impact how his brain and body develop, setting the stage for his learning and success, now and into the future. Using more or less powder than indicated could either lead to dehydration or deprive your child of proper nutrition. Do not change proportions without medical advice. Children 0-12 months should consume a healthy diet in addition to growing up formula. Should not be used to feed infants younger than twelve months of age