Generally speaking, the stomach capacity of newborns is relatively small, only about 10 ml at birth, and by the time they reach full term, the stomach capacity can increase to 90 ml-120 ml. 50-day-old babies need to be fed 6-10 times a day, and the average daily amount of milk required is about 850 ml. Mothers and fathers just need to grasp an approximate amount and number of times. Each baby’s food intake varies greatly, and the amount of formula feeding varies more individually. The main basis is to breastfeed on demand, and give the child as much as he needs. If the child’s spirit is fine, his reaction is fine, and his weight gain is satisfactory after eating milk, this kind of formula feeding is reasonable. Advantages of breastfeeding on demand: The traditional feeding method is to feed the baby regularly, every 2 to 3 hours, for about 15 minutes each time. However, modern research shows that breastfeeding according to the baby’s needs is more in line with physiological characteristics. Because babies have small stomachs and do not inhale much milk at a time, breastfeeding on demand enables babies to eat and drink enough and grow faster. At the same time, diligent sucking can also stimulate the mother’s prolactin secretion, making milk production more vigorous, while also helping to eliminate the mother’s milk bloating and prevent mastitis. Therefore, it is not necessary to fix the amount of breastfeeding, as long as the child makes hungry cries, you can feed the child. There are many reasons for babies to cry, including crying when they wet themselves, crying when they want to be held, and crying when they are frightened. Mothers should observe carefully and make accurate judgments, and not feed their babies whenever they cry. As long as your baby has good stools and is gaining weight satisfactorily, you can feed your baby milk on demand.