Caution Almonds
Veterinary organisations generally classify almonds as unsuitable for dogs due to digestive difficulty, high fat content, and choking or obstruction risks, even though they are not considered toxic in the same way as macadamia nuts.
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Caution Cashews
Veterinary pet-care sources state that cashews are not toxic to dogs, but they are high in fat and are often salted or seasoned, which may contribute to digestive upset and other health concerns.
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Safe Chestnuts
Sweet chestnuts — the edible roasting kind — are safe for dogs: no toxin, and unusually for a nut, very low in fat, so they don't carry the fat concern almonds and walnuts do. One vital naming catch first: horse chestnuts and buckeyes share the name 'chestnut' but are a different, toxic plant. This page is about the edible sweet chestnut; roast it, shell it, and a few plain pieces are a fine treat.
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Caution Hazelnuts
Veterinary and pet-nutrition sources generally describe hazelnuts as non-toxic to dogs, but note risks related to choking, high fat content, and digestive upset.
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Toxic Macadamia Nuts
Veterinary toxicology organisations classify macadamia nuts as toxic to dogs because ingestion has been linked to weakness, tremors, vomiting, and other neurological signs.
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Caution Nut Butter
Veterinary and pet-safety sources describe some nut butters as non-toxic to dogs, but warn about serious risks from xylitol and concerns related to fat, salt, and added ingredients.
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Caution Peanut Butter
Standard peanut butter is fine for dogs — but xylitol-sweetened peanut butter is a genuine veterinary emergency. The whole task is telling the two apart. This page gives the xylitol dose math and clear label-reading guidance, not a safe/unsafe binary.
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Caution Peanuts
Veterinary and pet-nutrition sources describe peanuts as not toxic to dogs but note risks related to high fat content, salt, and added ingredients commonly found in processed peanut products.
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Toxic Pecans
Veterinary and pet-safety sources classify pecans as unsafe for dogs due to their high fat content and the risk of mycotoxin contamination, which can cause serious illness.
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Toxic Pistachios
Veterinary and pet-safety sources classify pistachios as unsafe for dogs due to risks from mold-related mycotoxins, high fat content, salt, and the potential for gastrointestinal obstruction from shells.
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Caution Sesame Seeds
Veterinary and pet-nutrition sources describe sesame seeds as not toxic to dogs, while noting potential digestive upset due to fat content and the way seeds are commonly prepared or used.
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Caution Sunflower Seeds
Sunflower seeds are not considered toxic to dogs, but veterinary sources note concerns related to shells, salt, and fat content commonly found in packaged varieties.
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Caution Walnuts
Veterinary organisations note that while English walnuts are not classified as highly toxic, they can cause digestive upset, and moldy walnuts may contain tremorgenic mycotoxins that are dangerous for dogs.
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