Contain gallotannins causing severe GI upset, kidney damage, and liver failure. Oak leaves also toxic.
Dogs
Emergency risk
Cats
Emergency risk
Risk level
Danger
Symptoms
Vomiting, diarrhea, abdominal pain, lethargy, kidney failure
What to do now
EMERGENCY. Contact vet immediately. Can cause acute kidney failure.
Use these hub pages for broader dog, cat, cleaner, and emergency planning guidance.
Compare Acorns with common dog food, plant, medication, and household toxicity risks.
Open hubCat poisoningSee cat-specific guidance for Acorns, plants, cleaners, foods, and medication risks.
Open hubEmergency planningPlan for emergency exams, toxin ingestion care, hospitalization, and insurance decisions.
Open hubVomiting, diarrhea, abdominal pain, lethargy, kidney failure
EMERGENCY. Contact vet immediately. Can cause acute kidney failure.
Plan ahead for emergency vet bills
Poisoning, broken bones, and emergency surgery can get expensive quickly. Compare costs and accident coverage before you need it.
A one-page checklist for symptoms, product labels, emergency contacts, and what to bring to the clinic.
Macadamia nuts are toxic to dogs. The exact mechanism is unknown, but they cause neurological and muscular issues.
Almonds are not toxic but can pose choking hazards and cause digestive issues.
Walnuts, especially moldy ones, can contain tremorgenic mycotoxins that cause seizures.
Contain juglone and can grow mold producing mycotoxins.
Safer than many nuts but high fat. Unsalted only.
Not toxic but high fat. Shells choking hazard.