It is normal for a newborn to eat kilograms of body weight times 110 milliliters of milk per day for 7 days and 60 milliliters of milk per sitting. After the birth of a newborn, the amount of milk gradually increases, and on the 7th day, it is usually enough to drink about 60 ml each time, and the amount of milk a day is about the newborn’s kilogram body weight multiplied by 110 ml. When breastfeeding a newborn, you need to take the principle of breastfeeding on demand, when the child appears to cry and other signs of hunger, then breastfeeding, not necessarily every time in accordance with a fixed amount. If a newborn baby eats too little milk or has physical discomfort such as persistent crying, it is recommended to consult a doctor in time, under the guidance of the doctor to carry out reasonable feeding to prevent the child from indigestion and other abnormalities. Breastfeeding a newborn baby as much as possible is the most favorable for its physical development.