Can Cats Eat Cashews?

Cashews are not directly toxic but are high in fat and often salted—offer only tiny amounts occasionally and avoid for cats with pancreatitis or obesity.

Quick Safety Summary

Conditional: Cashews are not known to be directly toxic to cats, but they’re high in fat and (when salted) sodium and can cause digestive upset or contribute to pancreatitis or obesity. Small, plain, unsalted pieces given very occasionally are unlikely to cause harm in healthy cats; avoid for cats with pancreatitis, pancreatitis history, or obesity.

Short answer

Conditional: Cashews are not a poison for cats, but they’re not a recommended food. Small amounts of plain, unsalted cashew as an infrequent treat are unlikely to cause immediate harm in a healthy adult cat, but the high fat content, possible added salt and seasonings, choking risk, and lack of meaningful nutritional benefit make cashews a poor choice compared with cat-formulated treats.

Why cashews can cause problems for cats

High fat content and pancreatitis risk

Cashews are calorie- and fat-dense. According to USDA FoodData, 1 ounce (28 g) of cashews contains roughly:

• Calories: ~157 kcal
• Total fat: ~12–13 g (including ~2 g saturated fat)
• Protein: ~5 g
• Carbohydrate: ~8–9 g
• Sodium: varies widely — raw cashews are very low (~<5 mg/oz) but roasted salted cashews can contain 100 mg or more per ounce depending on preparation.

Sodium and seasoning concerns

Many commercially available cashews are roasted and salted or flavored. Excessive sodium can cause salt toxicity in cats at very high doses (neurological signs, vomiting, tremors) and milder sodium loads can worsen conditions like hypertension or heart disease. Flavored nuts may contain onion or garlic powder, both of which are toxic to cats (cause hemolytic anemia) even in small amounts.

Choking and GI obstruction

Whole nuts and large pieces are a choking hazard, particularly for kittens and small cats. They can also be difficult to digest and could cause partial obstruction in rare cases if swallowed whole.

Mold and aflatoxin risk

Like other nuts and seeds, cashews can be contaminated with fungal toxins (mycotoxins) if poorly stored. Aflatoxin contamination is more commonly associated with peanuts, but improper storage of any nut can carry fungal risks. Mycotoxin poisoning is rare for domestic pet exposures but is an additional reason to avoid feeding large quantities of nuts.

Toxicology: Are cashews toxic to cats?

• Officially, cashews are not listed as a specific toxin for cats by major animal poison control resources (e.g., ASPCA Animal Poison Control). They do, however, list many common people-food hazards (like onions, garlic, chocolate) and advise caution with fatty or salty foods.
• Macadamia nuts are one rare example of nuts known to be poisonous to dogs — there is no comparable, well-established nut toxicity for cats with cashews.

Sources: ASPCA Animal Poison Control (https://www.aspca.org/pet-care/animal-poison-control), Merck Veterinary Manual (pancreatitis entries).

Nutrition: Do cashews help a cat nutritionally?

Cats are obligate carnivores with precise nutritional requirements that are best met by animal-based proteins and specially formulated feline diets. Important feline requirements include:

• Preformed vitamin A (cats cannot convert beta-carotene to vitamin A efficiently)
• Arachidonic acid (an essential fatty acid found in animal fats)
• Taurine (an amino acid essential to cats)
• High-quality animal protein

Practical feeding guidance and serving sizes

If you decide to give a cat a tiny taste of cashew, follow these rules:

• Only plain, unsalted, unseasoned cashews. No honey-roasted, salted, chocolate- or spice-coated nuts.
• Start with a very small amount. A single whole cashew (about 1.7–2 g and ~10 kcal) is a reasonable maximum one-time offering for a typical 4–5 kg (9–11 lb) adult cat.
• Use the “5% of daily calories from treats” rule. A moderately active 4.5 kg (10 lb) cat requires roughly 180–220 kcal/day. One cashew (~10 kcal) would be about 4–5% of daily calories — at the upper limit for treats.

• 2 kg (4.5 lb) cat: 0.5 cashew (~5 kcal) — or skip entirely for kittens
• 4.5 kg (10 lb) cat: 1 whole cashew (~10 kcal) occasionally
• 6 kg (13 lb) cat: 1–2 small cashews (~10–20 kcal) occasionally

Special situations and emergencies

• If your cat eats salted or flavored cashews: watch closely for vomiting, diarrhea, lethargy, tremors, or weakness. Flavors may contain garlic or onion powder — these are toxic and require urgent veterinary attention.
• If your cat eats a large quantity (a handful or more) or shows abdominal pain, repeated vomiting, or lethargy: contact your veterinarian or the ASPCA Animal Poison Control center at (888) 426-4435 for immediate advice.
• If your cat is having breathing difficulty, collapse, seizures or other severe signs, go to an emergency clinic immediately.

Alternatives to cashews

If you want to give a special treat, choose options designed for cats:

• Commercial feline treats (low-calorie, balanced)
• Plain cooked lean meat (small pieces of boiled chicken or turkey, no bones, no seasoning)
• Freeze-dried meat treats

Bottom line

Cashews are not a direct botanical toxin for cats, but they are not a good cat treat. The high fat content can contribute to pancreatitis or weight gain, added salt and seasonings can be harmful, and cashews provide no essential nutrients that a cat needs that they can’t get from animal-based foods. Occasional, tiny tastes of plain, unsalted cashew are unlikely to harm a healthy adult cat, but it’s safer and more nutritious to offer cat-specific treats or small pieces of plain cooked meat.

If you’re ever unsure or your cat shows concerning signs after eating human food, contact your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435.

Key Takeaways

• Cashews are not labeled as toxic to cats, but are high in fat and often sodium—risks for pancreatitis, obesity, or salt-related problems.
• Obligate carnivores like cats do not gain meaningful nutritional benefit from nuts; cats need animal-based nutrients (taurine, arachidonic acid, preformed vitamin A).
• If you give cashews, use only plain, unsalted nuts and keep portions very small: roughly 1 cashew for a 4.5 kg (10 lb) cat as a rare treat.
• Avoid cashews entirely for kittens, overweight cats, or cats with pancreatic, heart, kidney disease, or those taking sodium-sensitive medications.
• In case of large ingestion or symptoms (vomiting, diarrhea, abdominal pain, weakness), contact a vet or ASPCA Animal Poison Control at (888) 426-4435.

Frequently Asked Questions