The recommended milk intake depends on whether they're drinking breast milk or formula. For formula-fed babies, the American Academy of Pediatrics states that your little one should drink two and a half ounces of formula for every pound of body weight. When it comes to pumped breast milk, you might find that your baby drinks this amount in more frequent, smaller feedings.
On the other hand, it can be difficult to figure out how much milk breastfed babies are drinking during each feed, so you may want to feed them according to their own natural rhythms and when they become hungry.