A newborn typically eats about 30 to 90 milliliters (1 to 3 ounces) per feeding in the first days and weeks after birth. Specifically:
- On the first day, a newborn's stomach can hold about 5 to 7 ml per feeding.
- By day 3, this increases to about 22 to 27 ml.
- After one week, the stomach capacity grows to about 45 to 60 ml per feeding.
- In the first week, newborns usually consume 1 to 2 ounces (30 to 60 ml) per feed.
- By two weeks old, this amount typically increases to 2 to 3 ounces (60 to 90 ml) per feeding.
- Around 1 month, babies may take 80 to 150 ml per feeding.
- By 2 months, feedings often range from 120 to 150 ml every 3 to 4 hours.
Newborns generally feed every 2 to 3 hours, about 8 to 12 times in 24 hours. The amount per feeding increases as the baby grows and their stomach capacity expands. Feeding should be responsive to the baby's hunger cues rather than strictly timed or measured amounts
. In summary, a newborn should be fed approximately 30 to 90 ml per feeding initially, increasing gradually to about 120 to 150 ml by 2 months of age.