This page is general information for home cooks. It is not medical advice. If you or someone you cook for has a food allergy, follow the advice of a doctor or allergist and read every label, every time. Recipes and factory practices change.
Allergens often found in chocolate
| Allergen | Where it shows up |
|---|---|
| Milk | Milk and white chocolate. Often in dark chocolate too, as an ingredient or from shared equipment. |
| Soy | Soy lecithin, an emulsifier used in many bars and chips. Some makers use sunflower lecithin instead. |
| Peanuts | Peanut candies, peanut butter fillings, and "may contain" warnings from shared lines. |
| Tree nuts | Hazelnut spreads and pralines, almond bars and many filled chocolates. |
| Wheat | Cookie pieces, wafers, crisped grains and malted ingredients in some bars. |
| Eggs | Some filled chocolates, mousses and baked goods. |
| Sesame | Some bars and confections, such as those with halva or tahini. |
Reading a US label
In the United States, packaged foods must declare the major food allergens: milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans and sesame. Sesame was added to the list starting in 2023. The allergen appears either in the ingredient list or in a "Contains" line after it.
"May contain" and "made in a facility that also processes" statements are voluntary. A product without one is not promised to be free of cross-contact, and a product with one may or may not contain traces. If an allergy is severe, contact the maker or choose products made in dedicated allergen-free facilities, and ask your allergist how to judge these statements.
Labels in other countries follow different rules and list different allergens. Check the rules where you live.
Allergen care in a home kitchen
- Ask about allergies before you cook for guests, and plan the menu around them.
- Make the allergen-free batch first, with clean bowls, spatulas, thermometers and pans.
- Wash tools and surfaces with soap and water. Wiping alone may not remove peanut residue.
- Store and label finished treats separately.
- Keep the packages so you can check the labels again if someone asks.
Swaps for home recipes
- For peanut butter: sunflower seed butter or another seed butter, checked for shared-line warnings. Tree nut butters are not a safe swap for someone who also avoids tree nuts.
- For milk chocolate: dark chocolate made without milk ingredients. Look for a label with no milk in the ingredients and check the cross-contact statement.
- For cream in ganache: full-fat coconut milk or another plant cream works in many recipes, though the texture and flavor change.
- For soy lecithin: bars made with sunflower lecithin or no emulsifier.
If someone reacts
Allergic reactions can become serious quickly. If someone has trouble breathing, swelling of the face or throat, or feels faint after eating, call emergency services. If they carry an epinephrine auto-injector, help them use it as their allergist has directed.
Other things to know
Chocolate contains caffeine and theobromine, in larger amounts in darker chocolate. People who limit caffeine may want to ask their doctor about chocolate too. Chocolate is also toxic to dogs and cats, so keep it out of their reach. If a pet eats chocolate, call your veterinarian or an animal poison control line.