Breastfeeding vs Formula Feeding: What Quantity Should a Newborn Take?
The way milk intake is assessed differs between breastfeeding and formula feeding.
Breastfeeding
Breastfed newborns should generally be fed in response to hunger cues. Many breastfed newborns feed 8 to 12 times in 24 hours during the early weeks, although some feed more frequently.
Early hunger cues can include:
- Bringing the hands towards the mouth
- Turning the head towards the breast
- Opening or puckering the mouth
- Licking or smacking the lips
- Becoming increasingly alert or restless
- Making sucking movements
Crying is often a later sign of hunger.
Because the amount transferred during breastfeeding cannot be measured directly, parents should look for active sucking and swallowing and monitor wet diapers and weight gain to help assess whether intake is adequate.
Formula Feeding
Formula-fed newborns generally take measured amounts, but there is no single volume that suits every baby.
In the first days, a formula-fed newborn may commonly take approximately 30 to 60 mL per feed every 2 to 3 hours. As the baby grows, the amount per feed generally increases and the interval between feeds may become longer.
The appropriate amount should be guided by the formula's preparation instructions, the baby's hunger and fullness cues, and advice from the baby's paediatrician.
A useful principle is to avoid forcing a baby to finish a bottle. Turning away from the bottle, closing the mouth, relaxing the hands or slowing and stopping sucking can indicate that the baby is full.
Safe Formula Preparation
When using powdered infant formula:
- Wash your hands before preparing the feed.
- Use a safe water source and follow the formula manufacturer's preparation instructions precisely.
- Measure the water first and add the specified amount of powder.
- Never add extra powder or dilute the formula with additional water.
- Prepare feeds using clean feeding equipment.
- Use prepared formula within the time recommended by the manufacturer or healthcare professional.
- Discard formula remaining in a bottle after a feed rather than saving it for later.
Incorrectly concentrated formula can provide inadequate nutrition or an excessive concentration of nutrients and solutes for a young baby's developing kidneys.