When should you start weaning a baby?

In the UK, weaning means introducing solid foods alongside your baby's usual milk feeds, not stopping milk. Breast milk or first infant formula remains your baby's main drink during the first year.

Reaching a particular age is not enough on its own. Chewing fists, wanting more milk or waking more at night do not necessarily mean a baby is ready, and a food label marked “from 4 months” does not override the readiness guidance. Starting solids is not a way to make a baby sleep through the night.

When the signs are present, you can begin with small amounts while your baby is alert, sitting safely upright and closely supervised. This article gives general UK information and cannot decide whether an individual baby is ready, particularly if they were born prematurely or there is uncertainty about their development.

What are the signs your baby is ready for weaning?

Readiness is a developmental pattern, not a date on the calendar. The NHS Start for Life readiness guidance says to look for three signs that appear together.

Look for all three NHS readiness signs together

• Your baby can stay in a sitting position and hold their head steady.
• They can coordinate their eyes, hands and mouth to look at food, pick it up and bring it to their mouth.
• They can swallow food rather than push it back out with their tongue.

Look for all three NHS readiness signs together; no single behaviour or photograph can confirm readiness.

No single sign or photograph can confirm readiness. Your baby's age and individual development still matter, and general guidance cannot assess your baby in person.

What does not prove a baby is ready

Chewing fists, wanting extra milk and waking more often at night are common behaviours that do not necessarily show readiness. Interest in food, mouthing objects, sitting with support or being placed in a high chair are not substitutes for seeing all three readiness signs together.

Commercial age labels are not a readiness test either. Even if a food packet says “from 4 months”, NHS guidance remains to start from around six months when the developmental signs are present. Introducing solids earlier is not supported as a way to improve sleep.

How to begin solids safely when your baby is ready

The first days are about learning, not replacing milk feeds or eating a set amount. NICE guidance on maternal and child nutrition supports a gradual, responsive approach alongside breast milk or first infant formula.

Milk feeds continue while solids begin

Continue your baby's usual breast milk or first infant formula. Milk remains their main drink throughout the first year, while solids begin in small amounts and gradually become a larger part of what they eat.

Start small and follow your baby's cues

Offer small amounts and introduce a variety of flavours and textures without expecting your baby to finish a set portion. Follow their cues for hunger and fullness, allow time to explore, and move on to different textures gradually. There is no single pace that suits every baby.

Whether you use baby-led weaning, spoon-feeding or a mixture of both, the same broad principles apply. This article does not compare methods or set out a fixed meal plan.

Use an upright position and suitable textures

For each feed:

•Make sure your baby is alert and safely upright.

•Stay with them and supervise continuously while they eat.

•Adapt the food's size, shape and texture to suit your baby's stage.

•Soften firm foods and cut small round foods, such as grapes or cherry tomatoes, into quarters.

•Keep milk feeds going and let your baby set the pace.

These steps can reduce choking risk, but no preparation removes it. The NHS food-preparation guidance has current examples of safer ways to prepare food.

Adapt the size, shape and texture of food to reduce choking risk, and supervise your baby throughout.

Gagging, choking and food allergy safety

Gagging can happen as babies learn to manage new textures, but do not assume it is gagging if you are unsure whether your baby is breathing or coughing effectively.

Gagging is not the same as choking

•Gagging can be a normal reflex while a baby learns to manage food and is usually noisy.

•Choking is dangerous, can be quiet and may stop a baby breathing or coughing effectively.

Noise alone does not tell you that a baby is safe. Check whether they are breathing and coughing effectively, and use the current NHS guidance on choking and gagging rather than relying on a single sign to decide what is happening.

Follow the full NHS first-aid advice for choking

If your baby cannot breathe properly or cough effectively, follow the full NHS first-aid advice for a choking child immediately. It gives age-appropriate steps and explains what to do, including CPR, if a child becomes unconscious. Do not rely on a shortened summary in place of those instructions.

Introducing allergenic foods

From around six months, potentially allergenic foods can be introduced one at a time in very small, age-appropriate amounts alongside other solids. If a food is tolerated, keep it as a normal part of your baby's diet. This does not guarantee that an allergy will be prevented.

Ask a GP or health visitor before introducing allergenic foods if your baby has a diagnosed allergy or eczema, or if there is a family history of allergy, eczema, asthma or hay fever. The NHS guidance on food allergies in babies and young children has more information about when to seek advice.

When to get individual advice before or during weaning

General guidance is useful for understanding the usual timing and safe first steps, but it cannot assess your baby's readiness, feeding, swallowing, growth or development.

If your baby was born prematurely

The timing of weaning is more individual for a baby born prematurely. There is no single corrected-age timetable that applies to every premature baby. Ask the health visitor, dietitian, neonatal or paediatric team, or another professional who knows your baby and their development. Cambridge University Hospitals' information on weaning babies born prematurely explains the individual approach.

If you are concerned about feeding, swallowing, textures or growth

Contact a health visitor or GP promptly if your baby repeatedly coughs or chokes with feeds, has difficulty swallowing, persistently struggles to manage textures, takes very little, or you have concerns about growth. Use NHS 111 for urgent swallowing or breathing concerns that are not an immediate 999 emergency. Any referral or specialist input depends on an individual assessment.

Where to get help

• Before starting: ask a health visitor or GP if you are considering an earlier start, are unsure about readiness, or need advice about allergy, eczema or relevant family history.
• During weaning: seek prompt advice for repeated coughing or choking with feeds, swallowing or persistent texture difficulty, poor intake or growth concerns.
• Urgent or emergency: use NHS 111 for urgent non-999 swallowing or breathing concerns; follow the full NHS first-aid advice for choking and call 999 if a blockage does not clear; call 999 immediately for a possible severe allergic reaction.

This is general UK information, not a diagnosis or an individual feeding plan. Specific advice from the professionals caring for your baby, and the emergency routes above, take priority over general reassurance.

Frequently asked questions