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From the YummyYucky team, founded by Nancy Nash

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Can Babies Eat Peanuts? How to Introduce It Safely

The allergen parents fear most, and the one where getting in early matters most. Never whole peanuts, though: think thinned peanut butter or dissolvable puffs.

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When to introduce
Around 6 months (introduce early)
Common allergen?
Yes (one of the big 9)
Texture
Thinned smooth peanut butter or dissolvable puffs
Key nutrients
Protein, healthy fats, niacin

The landmark LEAP study found that introducing peanut early and keeping it in the diet dramatically lowered the chance of a peanut allergy in at-risk babies1. For most babies, that means offering peanut in a safe form around 6 months rather than waiting.

⚠️ If your baby has severe eczema, an egg allergy, or a known food allergy, talk to your pediatrician before introducing peanut. They may recommend testing or an in-office introduction.

Prep School: how to prepare peanut for baby-led weaning (BLW) and purées

🍴 Baby-led weaning

6 monthsOffer dissolvable peanut puffs, softened at this age: dissolve about 21 puffs in 4 to 6 teaspoons of warm water until they break into a mush. Save dry, crunchy puffs for older babies who are confident with finger food. Introduce peanut earlier in the day and watch for about two hours.
9 monthsSpread thinned peanut butter on soft toast strips your baby can hold. Never thick, sticky globs.
12 months+Peanut butter spread thinly on toast and soft breads. Still never whole peanuts.

🥄 Purées

6 monthsThin smooth peanut butter with warm water, breast milk, or formula until it is easily swallowed, or stir peanut powder into a food your baby already eats. Introduce it earlier in the day and watch for about two hours.
9 monthsKeep peanut butter thinned and stirred through familiar soft foods. Never thick, sticky globs.
12 months+Thinly spread or stirred-in peanut butter as part of regular meals. Still never whole peanuts.

Is peanut safe? Choking & prep

Never give whole peanuts or thick, sticky globs of peanut butter: both are choking hazards. Always thin it out or use a dissolvable form. Introduce earlier in the day and watch for at least two hours.

Nutrition

Peanut provides protein, healthy fats, and niacin. Beyond nutrition, regular exposure is part of what helps maintain tolerance once peanut is introduced.

Goes well with

Banana · Oatmeal · Yogurt

Storage & freezing

Keep peanut butter as the label directs. Natural peanut butter separates, so stir it well and refrigerate after opening.

More proteins to explore

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Peanut butter (thinned)Around 6 months, thinned
🍢
SuyaFrom about 12 months
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Peanut puffs (Bamba)From about 6 months, once baby is showing signs of readiness for solids
🌰
PecanAround 6 months, as thinned smooth pecan butter or finely ground
🐟
PerchAround 6 months
🌿
Perilla seed6 months+

Introducing this allergen

Related reading

Common questions

How to give peanut to a baby, step by step

How much peanut, and how often

For the very first taste, a small amount is enough, and you do not need to hit any exact gram target. Once your baby has tolerated peanut, keeping it in the diet a few times a week helps maintain tolerance. If you want a specific amount or schedule, especially for a higher-risk baby, ask your pediatrician.

Peanut puffs, Bamba, and peanut powder: safe forms compared

Dissolvable peanut puffs (like Bamba) melt in the mouth and are an easy first form for many families. Peanut powder stirs cleanly into foods your baby already likes, which makes the amount easy to control. Smooth peanut butter works too, as long as you thin it. Never give whole peanuts or thick sticky globs of peanut butter, since both are choking hazards.

When to check with your pediatrician first

Talk with your pediatrician before introducing peanut if your baby has severe eczema, a known egg allergy, or another known food allergy, as these babies are at higher risk for peanut allergy. Your pediatrician may recommend testing or introducing peanut in a monitored setting. This is a quick conversation, not a reason to skip peanut altogether.

Keeping peanut in the diet after the first taste

One successful taste is a start, not the finish line. Offering peanut regularly, a few times a week, helps your baby's body stay used to it. Rotate the forms you already know are safe (thinned peanut butter, peanut powder in a favorite food, or dissolvable puffs) so it stays easy on busy days.

When should I introduce peanut to my baby?

For most babies, around 6 months once they have started solids and handled a few first foods. Introducing peanut early and keeping it in the diet is associated with a much lower risk of peanut allergy.

How do I give peanut to a baby safely?

Never give whole peanuts or thick spoonfuls of peanut butter. Thin smooth peanut butter with a little warm water, breast milk, or formula, or mix peanut powder into a food your baby already eats.

How often should I keep offering peanut?

Once introduced without a reaction, keeping peanut in the diet regularly (a few times a week) is part of what helps maintain tolerance. Ask your pediatrician about the right routine for your baby.

What are the signs of a peanut reaction?

Watch for at least two hours. Possible signs include hives, redness, swelling, or vomiting. Call 911 (or your local emergency number) right away if any of these show up soon after a food, on their own or together: swelling of the lips, face, eyes, or tongue; swelling or tightness in the throat, or trouble swallowing; vomiting; hives that spread beyond the mouth and face; trouble breathing, noisy breathing, or wheezing; a cough that keeps going; a hoarse voice; skin or lips that turn pale or blue; or a baby who goes floppy or limp, or is suddenly sleepy or hard to wake. If the only sign is a new rash or a few hives around the mouth or face, stop the food, watch your baby closely, and call your pediatrician. If anything else about your baby worries you, call 911.

Can I put peanut butter straight on a spoon or on toast for my baby?

Not straight from the jar. A thick glob of peanut butter is a choking hazard, so skip the spoonful and any thick, sticky layer. Thin smooth peanut butter with warm water, breast milk, or formula until it is easy to swallow, then stir it into a food your baby already eats, or spread it thinly on soft toast strips once your baby is handling finger foods. Peanut powder stirred into food works too.

My baby had a cold the first time I planned to introduce peanut. Should I wait?

Yes. NIAID's home feeding instructions say not to give the first peanut feeding while your baby has a cold, vomiting, diarrhea, or another illness, and it is easier to read your baby's reaction when they are well. Wait until it has passed. There is no need to delay for weeks, just pick a calm day when your baby is feeling like themselves.

Sources

  1. LEAP Study: Randomized Trial of Peanut Consumption in Infants at Risk (NEJM 2015)
  2. CDC: Choking Hazards (Infant and Toddler Nutrition)
  3. NHS: Foods to avoid giving babies and young children

Further reading

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Last updated September 2026. Next review December 2026. How we write these: built from current published guidance from the AAP, CDC, FDA/EPA, NIAID, WHO, and other pediatric and public-health authorities, with sources cited on the page. See our editorial and medical policy for how we research, source, and update these, and how we double-check the food advice.

This is general information, not medical advice, and is not individualized 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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