Five and a half month baby milk amount has individual differences, usually a day of 600-1000 ml of milk, each time you can feed about 150-200 ml, 4-5 times a day. Five and a half month baby’s weight, stomach capacity size is not the same, the amount of milk is different, the mother needs to feed on demand according to the child’s appetite and hunger level. If the interval between feedings is long, such as four or five hours, the baby can drink about 150 milliliters of formula at a time, and babies with a good appetite may need 180-200 milliliters; if the interval between each feeding is shorter, such as 2-3 hours, the baby will eat 100-120 milliliters of milk at a time. In addition, fat babies tend to eat more milk than thinner babies. Five and a half months baby is still recommended to exclusive breastfeeding, breastfeeding 4-5 times a day, each time you can breastfeed for 15-20 minutes, the amount of milk in a day 600-1000 ml. Babies with a better appetite can add infant formula appropriately at this time, and gradually add complementary foods when they are 6 months old, such as rice and fruit puree.