How much a baby eats changes dramatically from birth through the first year. A newborn’s stomach holds roughly one tablespoon on day one, and by 12 months your child will be eating table foods alongside breast milk or formula. Here’s what to expect at each stage, with specific volumes to use as a starting point.
Newborn Stomach Size: Smaller Than You Think
One of the most surprising facts for new parents is just how tiny a newborn’s stomach is. On day one, it holds about one tablespoon of milk. By day three, capacity grows to roughly half an ounce to one ounce. Around one to two weeks, your baby can take in 1.5 to 2 ounces per feeding, and by the end of the first month, feedings typically reach 2 to 4 ounces.
This small capacity is why newborns eat so frequently. Their stomachs empty quickly, and they need to refuel often to support the rapid growth happening in those early weeks. Frequent, small feedings are completely normal and expected.
Breastfeeding: Birth to 6 Months
Breastfed babies typically nurse 8 to 12 times in 24 hours, or roughly every 2 to 4 hours. Unlike formula feeding, there’s no easy way to measure ounces at the breast, so frequency and your baby’s behavior are your best guides. Some babies cluster feed, nursing as often as every hour during certain stretches, then sleeping for a longer 4- to 5-hour window.
A well-fed breastfed baby will seem content and drowsy after a feeding, with relaxed hands. Over the first few weeks and months, the time between feedings gradually stretches as your baby’s stomach grows and each session becomes more efficient. One thing to note: breastfed babies (and partially breastfed babies) need 400 IU of supplemental vitamin D daily, starting in the first few days of life, because breast milk alone doesn’t provide enough.
Formula Feeding: Birth to 6 Months
Formula-fed babies follow a more predictable pattern that’s easier to track by the numbers. Here’s what a typical day looks like:
- 1 month: 2 to 4 ounces per feeding, six to eight feedings per day
- 2 months: 5 to 6 ounces per feeding, five to six feedings per day
- 3 to 5 months: 6 to 7 ounces per feeding, five to six feedings per day
The total daily intake rises as your baby grows, but there is a ceiling. Babies should generally drink no more than about 32 ounces of formula in 24 hours. If your baby consistently wants more than that, it may be a sign they’re ready for solids (if old enough) or that something else is driving the extra hunger.
These numbers are averages. Some babies are hungrier one day and less interested the next. A feeding that’s an ounce above or below the range on a given day isn’t cause for concern as long as your baby is gaining weight steadily and producing enough wet diapers.
Starting Solids: 6 to 9 Months
Most babies are ready for solid foods around 6 months. At this stage, solids are a complement to breast milk or formula, not a replacement. The goal is exposure to new textures and flavors while milk remains the primary source of nutrition.
At around 6 months, portions are small:
- Fruits: 1 to 2 tablespoons of strained or pureed fruit, once or twice a day
- Vegetables: 1 to 2 tablespoons of strained vegetables, once or twice a day
- Protein foods: 1 to 2 tablespoons of strained meat or other protein, twice a day
- Iron-fortified cereal: 3 to 5 tablespoons mixed with formula or breast milk
By 9 months, your baby can handle more volume and thicker textures. Portions roughly double: 2 to 4 tablespoons of mashed fruits and vegetables twice a day, 2 to 3 tablespoons of tender chopped protein twice a day, and 5 to 8 tablespoons of cereal. You can also introduce soft starches like mashed potatoes, small pasta, or bread, starting with a quarter to half a cup twice daily.
Breast milk or formula feedings will naturally decrease somewhat as solid food intake increases, but milk should still make up the majority of calories during this window.
Expanding the Menu: 10 to 12 Months
Between 10 and 12 months, portion sizes hold fairly steady compared to 9 months, but the variety and texture of foods advance. Your baby can now handle finely chopped table meats, flaked fish (boneless), mild cheese, and soft bite-sized pieces of fruits and vegetables. Typical daily amounts look like this:
- Fruits and vegetables: 2 to 4 tablespoons each, twice a day
- Protein: 2 to 3 tablespoons of finely chopped meat, fish, or cheese, twice a day
- Starches: A quarter to half a cup of potatoes, pasta, or bread, twice a day
- Iron-fortified cereal: 5 to 8 tablespoons per day
Formula or breast milk still plays an important role during this period, providing calories, protein, calcium, and vitamin D that solid foods alone may not fully cover.
Water and Other Drinks
Before 6 months, babies don’t need water. Breast milk and formula provide all the hydration they require. Between 6 and 12 months, you can start offering small sips of plain water, aiming for about 4 to 8 ounces total per day. This is supplemental hydration, not a replacement for milk feedings. Juice is not recommended for babies under 12 months.
After 12 Months: The Milk Transition
At one year, most babies can switch from formula or breast milk to whole cow’s milk. The key guideline here is to limit cow’s milk to 16 to 24 ounces per day. Going above that range can interfere with iron absorption and crowd out solid foods, which by this age should be providing the bulk of your child’s nutrition. At this point, your toddler is eating three meals a day plus one or two snacks, with milk served alongside rather than instead of food.
Reading Your Baby’s Hunger and Fullness Cues
Charts and ounce counts are useful starting points, but your baby’s own signals are the most reliable feeding guide. These cues shift as your child develops.
From birth to about 5 months, a hungry baby will bring hands to mouth, turn toward the breast or bottle (called rooting), pucker or smack their lips, and clench their fists. When full, they’ll close their mouth, turn their head away from the breast or bottle, and visibly relax their hands. Crying is actually a late hunger signal. If you can catch the earlier cues, feedings tend to go more smoothly.
From 6 months onward, the cues become more deliberate. A hungry baby will reach for or point at food, open their mouth eagerly when offered a spoon, and get visibly excited at the sight of food. When they’ve had enough, they’ll push food away, close their mouth when a spoon approaches, turn their head, or use hand gestures and sounds to communicate that they’re done. Respecting these fullness signals, rather than encouraging a baby to finish a set amount, helps them develop a healthy relationship with eating from the start.