Hunger and fullness cues in babies

Babies say they are hungry long before they cry: hands to the mouth, a head turned toward the breast or bottle, lips that pucker, smack or lick. They say they are full by closing their mouth, turning away and relaxing their hands. The CDC and the AAP both describe feeding as reading those signals, and both say crying usually comes late.

It is a conversation in which one side has no words and strong opinions. The good news is that the vocabulary is small.

Early hunger cues

For babies from birth to 5 months, the CDC lists these signs that a baby is hungry:

• Putting their hands to their mouth
• Turning their head toward the breast or the bottle
• Puckering, smacking or licking their lips
• Clenched hands

The AAP’s list on HealthyChildren.org overlaps and adds a few: sticking out the tongue, rooting (turning the head or moving the mouth toward the breast), opening the mouth, fussiness, and sucking on whatever is nearby.

None of these is a demand on its own. The AAP notes that babies also suck for comfort, and that a baby showing some of these signs may want a cuddle or a clean diaper rather than a feed. Over a few weeks most families learn which version they are looking at, usually by getting it wrong a few times first.

Crying is a late cue

The CDC says crying is often a late sign of hunger, and suggests watching for the earlier cues so you can feed your baby while they are still calm.

The AAP explains why the timing matters: by the time a baby is crying, hunger has built up, and a crying baby can find it harder to settle down and feed. So the feed that starts at the lip smacking stage is often easier for everyone than the one that starts at full volume.

That does not make every cry a hunger cry. It means that when a baby is crying and hungry, the hunger probably started a little while ago.

Signs of fullness

For babies from birth to 5 months, the CDC’s fullness signs are closing the mouth, turning the head away from the breast or bottle, and relaxing the hands. The clenched fist of a hungry baby opening into a loose hand is one of the more satisfying things to watch.

The AAP adds pulling away, raising their hands, and stopping sucking. It also points out that bottle-fed babies may keep sucking after they are full, because feeding from a bottle is often easier than at the breast. Pausing during a feed gives a baby the chance to show they have had enough.

The CDC’s bottle feeding page puts it plainly: when a baby shows fullness, stop the feed, even if there is milk left in the bottle, and do not push a baby to finish. It also suggests holding the bottle at an angle so milk flows only when the baby sucks, and letting the baby take breaks when they seem to want one. The CDC’s wider advice is to let your child decide how much to eat, and not to use food as a reward or punishment.

Cues change as babies grow

The CDC notes that cues change as children grow and new signs develop. Its list for children from 6 to 23 months looks different, because by then many babies are eating solid foods and can reach, point and make sounds.

Hunger at this stage can look like reaching for or pointing to food, opening the mouth when a spoon or food is offered, getting excited at the sight of food, or using hand motions and sounds to say they want more.

Fullness looks like pushing food away, closing the mouth when food is offered, turning the head away, or hand motions and sounds that mean done. A spoon batted across the kitchen counts.

The AAP says that for most healthy full-term babies, responding to these cues works better than a fixed schedule. It also notes that babies born early, or with some medical conditions, may need scheduled feeds, and that your pediatrician can tell you which applies.

When several adults feed one baby

Cues are easy to read and easy to lose in a handover. A baby fed by a parent at 6, a grandparent at 9 and a partner at midnight has 3 people learning the same small vocabulary, often without comparing notes.

A few things help. Everyone can learn the same short list of early hunger signs and fullness signs, so a turned head means the same thing whoever is holding the bottle. Everyone can agree that a bottle does not have to be finished, which is the CDC’s advice and also the easiest rule to forget at 3 a.m. And whoever fed last can say what the baby did, not only when.

The CDC also notes that a breastfed baby may be more willing to take a bottle from someone other than the parent who breastfeeds, which is one more reason for the other adults to know the cues.

Sources

• Signs Your Child Is Hungry or Full — Centers for Disease Control and Prevention
• About Feeding From a Bottle — Centers for Disease Control and Prevention
• How Often and How Much Should Your Baby Eat? — HealthyChildren.org (American Academy of Pediatrics)

This is educational information from public sources, not a replacement for advice from your child’s healthcare professional.

In Withya, Care shows the last feed and who gave it, so the next adult reads the baby, not the clock.