Can Babies Eat Mayonnaise? Yes, After 12 Months
Store-bought mayonnaise is fine in small amounts from about 12 months. It is made with pasteurized egg (an allergen) and is mostly oil. Never give homemade mayo made with raw egg.
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- When to introduce
- From about 12 months
- Common allergen?
- Egg
- Texture
- Smooth, spreadable; thin it or mix into food
- Key nutrients
- Mostly oil (fat) and pasteurized egg; adds calories and flavor
Somewhere between building a tuna sandwich and dressing a potato salad, you look down at the jar and think: wait, can the baby have this? Mayonnaise sits in that weird pantry gray zone where it feels like a grown-up condiment but it is basically egg and oil whipped together. Good news for tired sandwich-makers: shop-bought mayo is fine in small amounts once your baby is around 12 months. It is oil, a little pasteurized egg, and some tang. The one real rule worth memorizing is about who made it, and we will get to that in a second because it matters more than the amount.
Why it matters: Parents run into mayo the moment they start making real family food: sandwiches, tuna salad, potato salad, dips. It looks like a grown-up condiment but it is fundamentally egg and oil, so it triggers two honest questions at once (is the egg a problem, and is it too rich?). The single biggest thing worth knowing is the raw-egg rule, which most people never think about until someone whips up fresh aioli.
Prep School: how to prepare mayonnaise for baby-led weaning (BLW) and purées
Is mayonnaise safe? Choking & prep
The rule that actually matters: never give a baby homemade mayonnaise made with raw egg, and use only pasteurized (store-bought) mayo1. Raw egg carries a salmonella risk that pasteurization removes, and homemade aioli or fresh-whipped mayo at a restaurant may use raw yolks. Shop-bought mayo is made with pasteurized egg and is fine in small amounts1. It does contain egg, which is one of the common food allergens, so if egg is new to your baby, introduce it in a plainer form first (like well-cooked scrambled egg) and watch for a reaction before working mayo in. Mayo is also mostly oil, so keep portions small; it adds a lot of calories and fat for a little food. It is smooth and not a choking risk on its own, but mind whatever you are spreading it on.
Log mayo the first time your baby tries it, and note whether egg has already been introduced. YummyYucky keeps your allergen watch and your list of firsts in one place so you are not guessing later.
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Nutrition
Mayonnaise is mostly oil, which means it is mostly fat and calories with a little pasteurized egg for structure and flavor. Fat is not the enemy for babies, who need a good amount of it for growing brains, but mayo is a concentrated source that does not bring much else along with it (little protein, few vitamins, no fiber). Think of it as a way to add richness and make other foods tastier rather than a food your baby is eating for nourishment. Some jars carry a fair bit of salt too, so glance at the label if you are using it often.
Goes well with
Tuna or salmon salad on soft toast strips · Mashed avocado for extra creaminess · Egg salad (double-check egg has been introduced) · Soft-cooked potato wedges as a dip · Shredded chicken salad · Thin smear on a sandwich cut into finger strips
Storage & freezing
Keep the jar refrigerated once opened and use it by the date on the label. Homemade mayo (made only with pasteurized egg, and never served to a baby if it used raw egg) spoils faster, so keep it cold and use it within a couple of days. Do not leave mayo-based salads sitting out at room temperature, especially at picnics, since they turn quickly in the heat.
More foods to explore
Introducing this allergen
Related reading
- How to introduce egg to babies →
- What to feed your baby first →
- How to cut food to prevent choking →
- Signs your baby is ready for solids →
- Baby-led weaning vs. purées →
Common questions
Can babies eat mayonnaise?
Yes, store-bought mayonnaise is fine in small amounts from about 12 months. It is made with pasteurized egg and is mostly oil, so use it to add flavor to other foods rather than serving it on its own.
At what age can a baby have mayo?
Around 12 months for shop-bought mayo. The main reason to wait is that mayo is mostly oil and mainly adds richness, and by a year old your baby is eating a wider range of foods where a little mayo fits naturally.
Is homemade mayonnaise safe for babies?
Only if it is made with pasteurized egg. Never give a baby homemade mayo made with raw egg, and be cautious with fresh aioli or restaurant mayo, which may use raw yolks and carry a salmonella risk that pasteurization removes.
Does mayonnaise contain egg?
Yes. Mayonnaise is made from egg and oil, so it counts as an egg-containing food. If egg is new for your baby, introduce it in a plainer, well-cooked form first and watch for any allergic reaction before adding mayo.
Is mayonnaise a choking hazard?
Mayo itself is smooth and spreadable, so it is not a choking risk on its own. Pay attention to whatever you spread it on and keep to soft, age-appropriate shapes and sizes.
Is mayonnaise too salty for a baby?
Some jars carry a fair amount of salt, so keep portions small and check the label if you use it often. A smear stirred into food is different from a heaping spoonful, and low-salt versions exist if you want one.
How do I serve mayo to my baby?
Mix a small amount into foods your baby already enjoys: a smear in mashed avocado, a spoonful in tuna or egg salad, or a thin layer on a soft sandwich cut into strips. Keep it as a flavor helper, not a main course.
Can I use light or low-fat mayonnaise instead?
You can, though babies handle fat well and do not need low-fat versions. Regular mayo is fine in small amounts. If you choose a lighter one, just check that it still uses pasteurized egg and keep an eye on the salt and sugar on the label.
Sources
Further reading
- American Academy of Pediatrics (HealthyChildren.org): Starting Solid Foods
- CDC: Foods and Drinks to Encourage and Limit
Track it in YummyYucky
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Start tracking for freeLast updated July 2026. Next review January 2027. How we write these: grounded in widely published pediatric guidance (the AAP, WHO, the NIAID 2017 allergen guidelines, and the LEAP study), and pending independent review by a pediatric professional. See our editorial and medical policy for how we research, source, and update these.
This is general information, not medical advice, and has not been individually reviewed for your baby. Always talk to your pediatrician about your baby's diet, introducing allergens, and any reaction. In an emergency, contact emergency services.
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