When Can Babies Eat Peanut Butter?
Peanut butter can and should be introduced from around 6 months. Despite being one of the most feared allergens for parents, the evidence strongly supports early introduction, the landmark LEAP study (2015) showed that early introduction of peanuts to at-risk infants reduced peanut allergy development by 81%. European guidelines (ESPGHAN) now recommend introducing all allergens including peanuts around 6 months, pas avoiding them.
Le key rule: always use smooth peanut butter. never whole peanuts or crunchy peanut butter, which are choking hazards until at least age 4. Thin smooth peanut butter with a small amount of warm water or breast milk to make it easier to swallow.
High-risk babies: different protocol
If your baby has severe eczema or an existing food allergy, discuss peanut introduction with your paediatrician first, they may recommend supervised introduction or allergy testing before starting. For most babies without these risk factors, introduce at home in the morning as part of normal weaning.
How to Serve Peanut Butter at Different Ages
| Âge | How to serve peanut butter |
|---|---|
| 6 months (first introduction) | 1/4 tsp smooth peanut butter thinned with 2–3 tsp warm water or breast milk, offered on a spoon |
| 6–9 months | Peanut butter thinned and mixed into porridge, pureed banana, or vegetable puree |
| 9–12 months | Thin layer of smooth peanut butter on soft toast strips (finger food); mixed into sauces |
| 12 months+ | Smooth peanut butter on toast, in sandwiches, as dip. Still smooth. no crunchy until 4 years. |
Safety Notes
- Always use smooth peanut butter. never whole or crunchy peanuts under 4 years
- Thin peanut butter with water or breast milk before serving to babies, sticky thick peanut butter is a choking risk
- Introduce in the morning at home, observe for 20–30 minutes after first exposure
- After tolerating, include peanut in diet regularly (2–3x/week) to maintain tolerance
- No added salt or sugar, check label; many adult peanut butters contain both