Newborn to 2 Months: During their first month, babies need to eat 8-12 times each day. That’s about once every 2-3 hours. Plan on your baby drinking 1.5 to 3 ounces at each feeding.
After about a month, they’ll start eating at least 4 ounces at each feeding. As bottle fed babies go through growth spurts, they may eat a little more.
At around 2 months, you may notice that as your little one grows so will their appetite; they may drink 4-5 ounces at each feeding, 3-4 hours apart.
4 months: Here is where your baby may go through a healthy slow phase and eat less than the recommended 6 ounces every 4-6 hours. This can be due to teething or just a general disinterest in eating as much as recommended.
When newborn growth spurt ends, the amount of nutrients your baby needs reduces, so their appetite may decrease accordingly. This is normal and will pass as each developmental phase occurs.
As long as the baby remains healthy and your pediatrician has no concerns, there is no need to worry.
6 months to 12 months: Babies drink as much as 8 ounces of baby formula at one time at this age. As solid food is introduced, it is not uncommon for a little one to go as much as 8 hours in between baby bottles of formula.
Similar to the four month stage, it is important to remember the exact amount your little one drinks will vary from day to day. As long as the baby remains healthy, you can trust your little one to tell you how much baby formula they need.