Baby Started Solids and Still Wakes Hungry at Night

If a baby who has started solids is still waking hungry at night, the most likely reason is that the solids quietly replaced milk rather than being added on top of it. Milk is still where nearly all the calories live in the second half of the first year, and a few spoonfuls of vegetable purée carry far less energy than the feed they displaced. The NHS is blunt about it: at the start of weaning, babies “will still be getting most of their energy and nutrients from breast milk or first infant formula.” So a day that looks like more food can easily be a day with fewer calories in it — and the shortfall shows up at 3 a.m.

Why more food can mean fewer calories

Before solids, the day was five or six milk feeds, each dense with fat and each taken efficiently. By week three of weaning, two of them have become “meals” — a high chair, twenty minutes, most of it on the floor, perhaps two tablespoons of carrot swallowed. Nobody decided to drop a milk feed. The clock ran out, or the baby seemed full, or the feed got pushed and then skipped.

That is the whole mechanism, and weaning is not meant to be a swap for months yet. The American Academy of Pediatrics puts it the same way on its starting solid foods guidance: “at first, your baby will still be getting most of their nutrition from breast milk, formula or both.” We covered the myth from the other direction in starting solids and baby sleep; this post is the harder case, where a baby who slept reasonably well started solids and got worse.

Milk first, food after

There is a sequencing rule that solves most of this, and it is the AAP’s own: give your baby “a little breast milk, formula or both first; then switch to very small half-spoonfuls of food; and finish with more breast milk or formula.”

It is there to stop a hungry baby fighting the spoon. It also protects the calories: a baby who takes milk first takes a full milk feed, while a baby offered a bowl first fills up on the least energy-dense thing in the room. For the 6-to-9-month stretch:

1. Milk feed at its usual time — not a top-up, the whole feed.
2. Twenty to thirty minutes later, the solids, so it is still the same eating slot.
3. A little more milk at the end if they want it.

When solids start eating the milk feeds rather than sitting beside them, move the order back before changing anything else. It costs nothing and it is often the entire fix.

The four things that crowd out milk without looking like food

• Juice. The AAP says babies under 12 months should not be given juice at all, and that juice “reduces the appetite for other, more nutritious, foods, including breast milk, formula, or both.” A cup at 4 p.m. is a skipped feed in disguise.
• Water. Healthy babies do not need extra water, and once solids begin the AAP caps it at one cup — 8 ounces — a day. A baby who sips water all afternoon is not hungry at 5 p.m. and very hungry at 2 a.m.
• Baby rice and filler cereals. The NHS states plainly that babies “do not need baby rice to help them move to solid foods or sleep better,” and the AAP warns against cereal in a bottle because of the choking risk.
• Too much wholegrain, too early. NHS guidance on what to feed young children notes that wholegrain foods “can be high in fibre and they may fill your child up before they have taken in the calories and nutrients they need.” It advises against giving only wholegrains to under-2s.

Make the same spoon carry more

If the milk is protected and the waking continues, the next move is density rather than volume. A baby’s stomach does not get bigger because you are worried; what can change is how much energy each spoonful carries. The NHS is unambiguous about fat at this age: “Young children, especially those under the age of 2, need the energy provided by fat,” which is why whole milk, full-fat yoghurt, cheese and oily fish matter, and why full-fat dairy is recommended right through to age two.

Same spoonful, more energy:

Instead of	Try
Plain vegetable purée	The same purée with a teaspoon of olive oil or butter stirred in
Water-thinned porridge	Porridge made with full-fat milk or breast milk
Plain fruit purée	Fruit purée with full-fat plain yoghurt folded through
Steamed vegetables alone	Vegetables plus soft-cooked lentils, meat or egg

Iron is the other half. The AAP asks you to “include foods that provide iron and zinc, such as baby food made with meat or iron-fortified cereals,” and the NHS names beans, pulses, fish, eggs and meat as the strong sources. Iron is not a sleep hack, but a baby short of it is harder work at every hour of the day.

Betteroo’s walk-through of the first weeks of spoon-feeding is a useful companion, because it sequences textures and amounts against the milk feeds rather than as a separate project.

The afternoon gap nobody plans for

Look at the clock rather than the plate. Most weaning days are front-loaded — breakfast solids, a midday feed, lunch solids — then a long stretch from 2 p.m. to bedtime with one thin feed in it, because that is the hour everything else happens. That gap is where the calories go missing, and it is invisible because nothing was skipped on purpose. Our growth spurt feeding post makes the same argument for a different cause, and the fix is the same: one protected late-afternoon slot with something ready, so it costs thirty seconds rather than another cooking session. A pot of full-fat yoghurt, a frozen cube of lentil mash, half an avocado. Getting that to survive 5 p.m. is a logistics problem, which is what our cooking dinner with a baby playbook is for.

When the food is not the problem

Sometimes the milk is protected, the meals are dense, the afternoon slot is real — and the waking carries on. Six to nine months is also peak schedule-change territory: naps consolidating, wake windows stretching, bedtime drifting late. An overtired baby wakes more and eats worse, which looks exactly like hunger from outside. The tells are in our hunger or habit post — a genuinely hungry baby takes a full, businesslike feed; a schedule-driven waker snacks and dozes.

This is the half a recipe cannot touch. Betteroo builds a day-by-day plan for your baby’s age and adjusts it as the weaning months move; its rhythm for seven- and eight-month-olds is a quick sanity check on your own day.

Is it hunger, or is it the schedule? A personalized day for your baby's exact age, adjusted through the weaning months — so you can tell a real calorie gap from a nap that ran short. Take the 2-minute sleep quiz →

One caveat: night feeds are normal and expected for much of the first year, and a baby who is not gaining weight well is a conversation for your pediatrician, not a blog. Nothing above is a reason to drop a feed.

FAQ

My baby started solids and is waking more at night. Why?

Most often because solids displaced a milk feed instead of being added to it, so the day’s calories went down. Check every milk feed is still happening at full length before changing anything about the food.

Should I feed my baby more solids before bed to stop night waking?

No. The NHS states that starting solid foods will not make a baby any more likely to sleep through the night, and a large late meal tends to cause gas rather than sleep. Protect the bedtime milk feed instead.

Can I put cereal in the bottle to help my baby sleep?

No. The AAP warns against cereal in a bottle because of the choking risk, and the NHS says babies do not need baby rice to sleep better. If reflux is in the picture, ask your doctor.

What foods help a baby feel fuller overnight?

Denser rather than bigger: full-fat dairy, a little oil or butter stirred into purées, porridge made with milk rather than water, and iron-rich foods like meat, lentils and eggs.

How much milk should a baby still be having at 8 months?

Enough that milk is still the main source of calories — solids at this stage are practice and variety, not fuel. If you are unsure, ask your health visitor or pediatrician rather than guessing.