Question: how much breastmilk should a 4 day old baby eat?
Answer: The stomach is already 4 times larger and can hold 0.8 - 1 ounces of milk. Your milk production is about to start and breastfeeding should get easier. On average, babies weigh 6 - 9 pounds at birth and will need between 14 to 22 ounces of milk per day.