Oats and porridge for babies: when to start, gluten and oat milk

Babies can eat oats from around 6 months, once they've started solids. Porridge is one of the easiest first foods to make: smooth and runny to begin with, thicker as your baby's eating skills grow, and easy to set into soft fingers they can hold. Australian, UK and US guidance all include grains like oats in the first year, and none of the sources we checked says to hold them back.

Oats raise three questions that other first foods don't. Do they count as gluten, and what if coeliac disease runs in the family? When is oat milk suitable as a drink? And what about allergy? This guide answers each one, with what to serve at each age and when to get help.

When can babies eat oats?

From around 6 months, when your baby shows the signs of readiness in starting solids.

The ASCIA guide to introducing solid foods, from Australia, says to start solids around 6 months and not before 4 months, with iron-rich foods such as iron-fortified cereals first. It lists cereal foods such as bread, crackers, pasta and iron-fortified cereals, and suggests a variety of grains including wheat, rice, oats and corn. The NHS guide to feeding from around 6 months lists oats and porridge among starchy foods, and says cereals can be mixed with breast milk or first infant formula.

In the US, the CDC's solids guide suggests offering a variety of fortified infant cereals, such as oat, barley and multigrain, rather than only rice cereal. The FDA's advice on limiting arsenic exposure also lists oat among the iron-fortified infant cereals that can be used instead of rice. Rice for babies explains why varying grains matters.

If you want oats to help with iron, choose an infant oat cereal labelled iron-fortified. ASCIA lists iron-fortified cereals among the iron-rich foods to offer from around 6 months; first foods and iron covers the others.

How do I make porridge for my baby at each age?

Start smooth, then add texture as your baby learns to chew and move food around their mouth.

Around 6 months. Cook rolled or quick oats in water until very soft, then blend or mash and loosen with your baby's usual milk. Many families grind rolled oats to a fine powder first so the porridge is smoother. The NHS says cereals can be mixed with breast milk or first infant formula, and its guide to drinks and cups says cow's milk can be used in cooking or mixed with food from around 6 months. Australia's Pregnancy, Birth and Baby says 1 to 2 teaspoons is plenty at first.

8–9 months. Pregnancy, Birth and Baby says most babies can manage finger foods at about 8 months, and that lumpy food should be introduced by 9 months to lower the chance of feeding problems later. Make porridge thicker and less blended. Many families spread thick porridge in a dish, let it set in the fridge, and cut it into soft fingers your baby can hold.

12 months and beyond. ASCIA says to aim for soft, cut-up or roughly mashed family meals by 12 months. Your toddler can share the family's porridge, or eat oats baked into soft pancakes or muffins made without added sugar.

Keep porridge plain

• No sugar or syrup. The CDC's foods to avoid or limit says children under 24 months shouldn't have added sugars. The NHS list of foods to avoid says to avoid food with sugar for children aged 4 or younger, including sugar from honey and syrup.
• No honey before 12 months. The NHS and the CDC both say honey can cause infant botulism, a serious illness. See honey and babies.
• Check sachets and instant oats. Read the label for added sugar and salt; Pregnancy, Birth and Baby suggests avoiding bought foods high in sugar and salt.
• Sweeten with fruit. Mashed ripe banana or berries stirred through porridge add flavour without added sugar.

Do oats contain gluten?

It depends on who you ask, and on the oats. Coeliac Australia defines gluten as proteins from wheat, rye and barley, and says oats contain a similar protein called avenin. The NHS coeliac disease page says oats don't contain gluten but can cause a reaction if they're produced in the same place as wheat, barley and rye. ASCIA's dietary guide for wheat allergy, from Australia, groups oats with wheat, barley and rye as cereals containing gluten.

In practice, contamination is the bigger issue. Coeliac Australia says standard commercial oats are often highly contaminated with wheat gluten, and that Australian and New Zealand food law doesn't allow oats to be labelled gluten free.

For most babies, none of this matters, because there's no need to avoid gluten. The NHS says foods containing gluten, including wheat, barley and rye, can be introduced from around 6 months, and the NHS first solid foods guide suggests offering allergy foods such as gluten one at a time and in small amounts so you can spot any reaction. The NHS names wheat, barley and rye, rather than oats, as the gluten foods; wheat foods include bread and pasta.

Should I delay oats or gluten if coeliac disease runs in the family?

No. Coeliac groups in Australia and the UK agree that delaying gluten doesn't help.

• Australia. Coeliac Australia's advice on introducing gluten says current evidence suggests gluten shouldn't be delayed, even for babies at higher risk, such as when one or both parents have coeliac disease. It suggests introducing small amounts at the usual time, around 6 months and not before 4 months, and increasing slowly as tolerated. It says avoiding gluten isn't recommended, because it could restrict nutrients needed for growth.
• UK. Coeliac UK's guide to feeding your baby says gluten can be introduced from 6 months with no benefit in delaying, that gluten should be eaten regularly once your baby is established on solids, and that coeliac disease can only be diagnosed once gluten is in the diet.

The NHS says first-degree relatives of people with coeliac disease, which includes their children, are at increased risk, and that children with coeliac disease may not grow at the expected rate. Coeliac Australia says to discuss testing with your child's doctor if symptoms such as diarrhoea develop.

If your child has been diagnosed with coeliac disease, oats need individual advice. Coeliac Australia says pure oats are specially produced to be free of wheat, rye and barley contamination, that adverse effects even from pure oats are estimated to occur in less than 10% of people with coeliac disease, and that you should discuss oats with your medical team first.

When can my baby drink oat milk?

Not before 12 months. Until then, breast milk or infant formula should be your baby's main milk; ASCIA says this, and Pregnancy, Birth and Baby says breast milk or formula is needed until 12 months. The NHS Best Start in Life list of foods and drinks to avoid says unsweetened, calcium-fortified plant-based drinks, including oat, should be avoided before 12 months.

After 12 months, sources agree that oat drinks can be part of a varied diet, but differ on how suitable they are as a main milk.

The NHS drinks guide says unsweetened, calcium-fortified milk alternatives, such as soya, oat or almond drinks, can be given from the age of 1. The Royal Children's Hospital Melbourne's toddler guide says calcium-enriched plant milks, such as rice or oat, can be used after 12 months if they're full-fat and your toddler eats other foods such as meat, lentils and eggs. ASCIA's cow's milk allergy page says alternative milks for children with cow's milk allergy should have adequate protein and fat for growth, and calcium around 120 mg per 100 mL.

In the US, the CDC's foods to encourage says that from 12 months you can begin offering whole cow's milk or fortified, unsweetened dairy alternatives. The AAP's recommended drinks guide is stricter: it says most plant-based milks aren't nutritionally equivalent to cow's milk and may lack protein, vitamin D and calcium, and that other than soy milk, they're not recommended in place of dairy milk.

If oat milk will be your toddler's main milk, talk to your GP, child-health nurse or a dietitian. Moving to cow's milk covers the switch from breast milk or formula.

Can babies be allergic to oats?

Oats aren't on ASCIA's list of the foods behind most allergic reactions: cow's milk, egg, peanut, tree nuts, wheat, soy, sesame, fish and shellfish. Other foods can still cause reactions. ASCIA's wheat allergy guide says most people with wheat allergy can tolerate oats, but about 20% may be allergic to other gluten-containing cereals such as barley, rye or oats, so check with an allergy specialist if your baby has a wheat allergy.

FPIES: a delayed reaction to watch for

Oat is one of the most common triggers of FPIES. ASCIA's FPIES fact sheet, from Australia, describes it as a delayed gut allergy whose most common triggers in babies are rice, oat, cow's milk and egg.

• What it looks like: repeated vomiting, usually 1 to 4 hours after eating the food. Some babies also become floppy, pale and cold, and have diarrhoea.
• What it doesn't cause: hives, welts, swelling or anaphylaxis.
• What happens next: a doctor diagnoses it from the history, and your child's allergy specialist and dietitian advise which foods to avoid. ASCIA says most children outgrow FPIES by 3 years of age.

ASCIA notes that a baby with FPIES to rice should avoid oat unless their specialist advises otherwise, but if your baby already eats oats without problems, keep them in.

Signs of an immediate allergic reaction

ASCIA says allergic reactions usually happen within minutes to two hours. Its anaphylaxis FAQ separates milder signs from anaphylaxis, the most severe type.

ASCIA classes lip swelling as mild to moderate, while the NHS urgent-help guide lists swollen lips among reasons to call an ambulance, so this guide treats sudden lip swelling as an emergency. Redness only around the mouth, with no other signs, is not usually an allergic reaction, according to ASCIA.

These steps follow the ASCIA first aid plan for anaphylaxis from Australia, which says if in doubt, give the adrenaline device. For milder signs with normal breathing, stop the food, watch closely and get medical help today; ASCIA says to get specialist advice before offering it again. Introducing allergens covers the common allergy foods, including wheat.

Can babies choke on oats?

Smooth porridge is a soft first texture, but Pregnancy, Birth and Baby notes that babies can choke on any food of any texture. Oat snacks are where to take care: the CDC's choking hazards list includes cookies and granola bars, and crackers or breads with seeds, nut pieces or whole grain kernels. Keep oat bars, biscuits and crunchy granola for later, and offer soft, moist oat foods instead.

Gagging is common while babies learn new textures. It's noisy, and your baby keeps breathing. Choking is usually quiet: your baby can't cough, cry or breathe properly. Choking vs gagging explains the difference.

If your baby can't breathe, cough or cry, shout for help and call your local emergency number (000 in Australia, 999 in the UK, 911 in the US). The NHS first-aid steps for a choking baby are up to 5 back blows, then up to 5 chest thrusts, repeated until the food comes out or help arrives. If your baby becomes unresponsive, start CPR and follow the call-taker's instructions. Get medical help afterwards, even if the food came out.

The Royal Children's Hospital Melbourne in Australia recommends that anyone caring for children does a first-aid course, and the AAP's choking-prevention advice recommends a certified CPR and first-aid course. Doing one before or soon after starting solids lets you practise.

What's worth noting?

If your baby vomits after porridge, note what they ate, the time they ate and the time the vomiting started; a gap of 1 to 4 hours is worth mentioning to your doctor. If coeliac disease runs in the family, a simple record of when gluten foods were introduced, along with any ongoing diarrhoea or changes in growth, is useful at check-ups.

When should I get help?

Call your local emergency number (000 in Australia, 999 in the UK, 911 in the US) now if your baby:

• has difficult or noisy breathing, a wheeze or a persistent cough
• has sudden swelling of the lips, tongue or throat
• has a hoarse voice or cry, or becomes pale, floppy or drowsy, or collapses
• is vomiting and becomes pale, floppy or cold, or is much sleepier than usual or hard to wake
• is choking and can't breathe, cough or cry
• has had no wet nappy or wee for 12 hours

Get medical help today if your baby:

• has hives or welts beyond the mouth area, or swelling of the face or eyes, with normal breathing (stop the food and watch closely for anaphylaxis signs)
• vomits repeatedly a few hours after eating oats or rice, even if they seem well afterwards
• has vomiting or diarrhoea with fewer wet nappies than usual (see signs of dehydration)
• needed back blows or chest thrusts, even if they now seem well

Talk to your GP or child-health nurse if:

• your baby has ongoing diarrhoea or isn't growing as expected, especially if coeliac disease runs in the family
• your baby has a wheat allergy and you'd like to add oats
• oat milk or another plant milk will be your toddler's main milk