How Much Does a Newborn Eat? Guide by Feeding Method
Amounts, frequency, and hunger and fullness cues — no guessing.
A newborn's stomach fits in a walnut: just 5-7 ml at birth. By day 7, it's grown to 45-60 ml. That's why they eat so often — they literally fill up fast and empty fast. The golden rule in the first 30 days: feed on demand, not by the clock.
Baby's stomach size
Day 1
5-7 ml
Day 3
22-27 ml
Week 1
45-60 ml
Month 1
80-150 ml
Feeding frequency by week
Week 1
8-12 feedings per day. Every 1.5-2 hours. Completely normal — the stomach is tiny.
Week 2-3
8-10 feedings. Some babies start having 2-3 hour intervals during the day.
Month 1
7-9 feedings. 2.5-3 hour intervals during the day. There may be a 4-5h stretch at night.
Hunger cues (act before crying)
Turns head looking for the nipple (rooting reflex)
Sucks on fists or fingers
Rapid eye movements under eyelids
Rhythmically flexes and extends legs
Crying is the LAST hunger cue — it's harder to feed a baby who has already cried
How to know they're eating enough: weight. If they regain their birth weight by 10-14 days and have 6+ wet diapers per day, they're eating well.
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First month: feed on demand, not by the clock. The baby knows how much they need.
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mi·ma is a support logbook for parents. This guide is informational and does not replace consultation with your pediatrician. For any concerns about your baby's health, consult a healthcare professional.
Sources
- · AAP — Newborn Feeding (2022)
- · La Leche League International
- · WHO — Infant Feeding Guidelines
- · Stanford Medicine — Newborn Stomach Size