If milk consumption can be maintained once every 3 hours, you can calculate the amount of milk per time. 1~3 months old babies have 500~750ml of milk per day, divided into 8 times, each time is 60~90ml. The amount of milk each baby eats varies and should be decided according to individual circumstances. In general, breastfeeding, which advocates breastfeeding on demand, can automatically regulate the amount of milk and the baby will not gain weight too fast. If artificial feeding, often easy to over degree feeding, so that the baby weight growth too fast, too fat in infancy, adult susceptible to obesity, hypertension, diabetes and other adult chronic diseases. Therefore, not the fatter the baby the better, the weight growth is appropriate is the best feeding.