What makes it harmful
tannins in acorns and oak leaves; whole acorns are also a choking and obstruction hazard
Symptoms to watch for
Mild / early
- • Vomiting
- • Diarrhea
- • Abdominal pain
- • Loss of appetite
Severe — vet urgently
- • Weakness
- • Kidney injury
- • Intestinal blockage
What to do if eaten
If a dog ate acorns, oak leaves, or an unknown number of either, contact a veterinarian promptly. Do not wait for symptoms if a whole acorn may be stuck.
Frequently asked questions
- Can dogs eat acorns?
- Dangerous — acorns can cause stomach illness, kidney injury, and intestinal blockage.
- Can dogs have acorns?
- Dangerous — acorns can cause stomach illness, kidney injury, and intestinal blockage.
- What happens if a dog eats acorns?
- Symptoms can include vomiting, diarrhea, abdominal pain, loss of appetite, weakness, and more. Severity depends on the amount and your dog’s size.
- What should I do if my dog ate acorns?
- If a dog ate acorns, oak leaves, or an unknown number of either, contact a veterinarian promptly. Do not wait for symptoms if a whole acorn may be stuck.
Sources
These references were used to cross-check this educational guide. They do not replace advice for your dog's specific situation.
⚠️ For general guidance, not veterinary advice. Toxicity depends on your dog’s size, the amount eaten, and individual sensitivity. Always confirm with your vet for health decisions.