Question: how much formula should a 3 week old eat in 24 hours?
Answer: There is no specific amount of formula that all babies should get each day. While some young babies may drink 24 ounces a day, others may need 32 ounces or more. The American Academy of Pediatrics (AAP) suggests that on average, your baby needs about 2 1/2 ounces of formula a day for every pound of body weight.