The USDA now requires manufacturers to disclose the presence of tree nuts in normal English on food labels.  However, since nuts are so allergenic and even a tiny amount can cause a reaction, you should always check with the manufacturer of a food to make sure there was no possibility of cross-contamination.

Tree nuts

• Almonds
• Brazil nuts
• Cashews
• Chestnuts
• Coconut (The USDA recently classified coconut as a tree nut, although there are no known cases of someone with a tree nut allergy having a reaction to coconut.  See FAAN for more information)
• Hazelnuts  (sometimes called Filberts)
• Hickory nuts
• Macadamia nuts
• Pecans
• Pine nuts
• Pistachios
• Walnuts

Tree nut products

Tree nuts are often found in the following products:

• Marzipan/almond paste
• Nougat
• Artificial nuts
• Nut butters (such as cashew butter and almond butter)
• Nut oil (both edible and in lotions, shampoos, etc.)
• Nut extracts (such as almond extract)
• Nut milks (almond milk)
• Pesto
• “Creamy” vegan soups are often made with almonds