When do babies stop formula?

Part of Baby Feeding Guides

When do babies stop formula? First infant formula is the milk drink through the first year. Whole cows' milk is the main drink after the first birthday. That is the line. Not the week solids start. Not a switch to a follow-on milk.

When do babies stop drinking formula is the same answer. The drink stays first infant formula until that birthday. After it, whole cows' milk can be the main drink. This page does not give a tin size, a bottle count, or a dose.

A parent online will ask if they should stop because the baby is bigger, sleeping longer, or eating a few spoons. Size, a longer night, and a spoon of food are not the stop. The first year is.

Through the first year

First infant formula is the milk you keep using if your baby is formula-fed. It is the milk drink through the first year. You make it as the tin says. You do not water it down to stretch the tin. You do not make it stronger to fill them up. This page will not invent a scoop count. The tin in your hand is the one you follow for mixing.

While they still drink formula, temperature is a separate question. Read Will a newborn take a cold bottle. A cooled bottle is not a reason to retire formula. Stopping formula is about which milk is the main drink, and when.

Newborns wake to feed. Some sleep about 8 hours in 24 hours, some up to about 18. Either is normal. Later, some babies sleep longer at night, and some do not. A long night is not proof the milk drink should change. Hunger can still wake them. Offer a feed. You are not keeping formula "too long" because they still want it at 11 months.

If they seem unwell, call a doctor. Do not change the milk as a test. A baby who is ill needs a check, not a new tin.

When drinking formula stops

When do babies stop drinking formula, as a plan, is the first birthday. Through the first year, formula stays the milk drink. After the first birthday, whole cows' milk takes that place as the main drink. You do not have to finish a story about the last bottle on this page. The drink is the point.

When	The main milk drink
Through the first year	First infant formula, if they are formula-fed.
After the first birthday	Whole cows' milk as the main drink.
Around 6 months, when solids start	Formula stays. Food is added. It does not replace the milk.
A follow-on formula	Not required. You do not need to switch.

A parent online will ask if they can stop a month early because the cupboard is full of ordinary milk. No. Whole cows' milk is not the main drink before the first birthday. Keep first infant formula until then.

The container can change before the milk does. A free-flow cup can start around 6 months. Bottles are finished by the first birthday because of teeth. That is about the bottle, not about cancelling milk. Milk still happens. It moves toward a cup. The formula itself runs through the first year.

You do not need a countdown of bottles per day from this page. There is no number here for "only morning formula" or "half a tin". If a doctor has given you a plan for your baby, use that plan. This guide is the ordinary line: first year, first infant formula. After the birthday, whole cows' milk as the main drink.

When to start whole milk

When to start whole milk: after the first birthday, as the main drink. The milk is whole cows' milk. Not a skimmed drink you chose because it looked lighter. This page names whole cows' milk. That is the main drink after the birthday.

Before that birthday, whole cows' milk is not the main drink. Formula is. A splash you are curious about is not a plan this page will build. The instruction is the main drink. Keep that clear. First infant formula through the first year. Whole cows' milk after.

Offer it in a cup. They are past the bottle as the thing they still need, because bottles are done by the first birthday because of teeth. If a bottle is still in the day at that birthday, the job is to finish bottles, not to pour formula forever so the bottle feels familiar. The milk can be whole cows' milk. The cup is the place for it.

If they refuse the new milk at first, keep offering whole cows' milk as the main drink. Keep food in the day. If they seem unwell, or they almost stop drinking, call a doctor. Do not add a flavour or a sweetener. Honey is not for a baby under 1, and this change sits at the birthday, not before it.

Follow-on formula

Parents meet a second tin and wonder if they must move. You do not need to switch to a follow-on formula. First infant formula is the milk drink through the first year. The extra tin is not a required step between newborn formula and whole cows' milk.

You can keep the first infant formula you already use, made as that tin says, until the first birthday. Then the main drink becomes whole cows' milk. There is no middle milk you must buy so the year looks complete.

A shop label can make a follow-on tin look like the next size, the way clothes sizes work. Milk is not a size. Bigger baby does not mean a new formula. If a doctor has told you to use a specific formula, follow the doctor. This page is not a specialist prescription. It is the ordinary path.

Do not mix two formulas in one bottle to "use up" a tin. Do not add whole cows' milk into formula to get them used to it before the birthday. The main drink stays first infant formula until that day. After it, whole cows' milk can stand on its own as the main drink.

Solids do not replace it

Solid food starts around 6 months, when three signs show together. They sit with a steady head. They bring food to the mouth. They swallow. That is the start. Food is added. Formula stays through the first year.

Fists, extra milk, and night waking are not the signs to start solids. Extra milk means they still want milk. Give the milk. Night waking is not a reason to stop formula or to start food early. Solids do not make them sleep through. Teething and hunger can wake them. If they seem ill, call a doctor. No gel and no dose on this page.

A parent online will say their baby ate a full bowl and skipped a bottle, so formula is done. One full bowl is not the first birthday. Keep offering first infant formula as the milk drink. Let the bowl be food. Let the bottle or cup be milk. They do different jobs until the year is up.

Honey is not for a baby under 1. It does not belong in a feed, in a puree, or as a way to make whole milk taste sweeter later. That warning sits inside the feeding year. It is not a formula rule, but it is easy to break when you are changing foods. Leave honey out.

If you are unsure

If you are unsure which tin is first infant formula, read the tin. If a clinician has prescribed a formula, use that one and ask them before you swap. This page does not choose a brand. It chooses the job: first infant formula through the first year, then whole cows' milk as the main drink.

Call a doctor if your baby seems unwell, is not drinking, or you are worried. You do not need to arrive with a perfect log. Say what they drank, what changed, and how they seem. Do not wait for the birthday if they are ill now.

Sleep stays the same while milk changes. On the back, firm flat mattress, fitted sheet, in your room for the first 6 months. For the first year, no blanket, lovey, or soft toy in the cot. A sleep bag can replace loose bedding. A feed is not a reason to leave them asleep in a car seat, stroller, swing, carrier, or sling. Those seats are not for routine sleep. If they fall asleep in one, move them to a flat cot when it is safe. Inclines over 10 degrees are unsafe.

The short version is the one to keep on the fridge, if you need a line. First year: first infant formula. After the first birthday: whole cows' milk as the main drink. Follow-on formula is not required. Solids do not replace the milk. If they seem unwell, call a doctor.

Frequently asked questions

Sources

Fact-checked

• NHS. How to start weaning your baby.nhs.uk
• NHS. Your baby's sleep patterns.nhs.uk
• NHS. Safe sleep advice for babies.nhs.uk
• American Academy of Pediatrics. Sleep-related infant deaths: updated 2022.publications.aap.org

Reviewed 2 November 2026. Formula through the first year and whole cows' milk after the first birthday are the feeding line on this page. Weaning timing and sleep-place facts use the pages linked above.