Can Dogs Eat Red Grapes?

NoEmergency risk
Verdict for dogs: Toxic · Evidence: H · Last verified: 2026-11-01 (seed data — veterinary review pending)

No. Red Grapes is toxic to dogs. It contains suspected tartaric acid (idiosyncratic). There is no amount we can call safe, so it should stay off the menu. If your dog has already eaten some, contact your veterinarian or a pet poison hotline right away.

Your dog already ate some?
Don't wait for symptoms. Call your veterinarian now, or a pet poison hotline:
ASPCA Animal Poison Control (US): (888) 426-4435 (a fee may apply) · Pet Poison Helpline (US/CA): (855) 764-7661 (a fee applies)

Why it is toxic

suspected tartaric acid (idiosyncratic)

Which parts are the problem?

all

Dose & exposure rules

Same risk as grapes; color makes no documented difference

If it must be on the menu: safe preparation

None — no safe amount established

Symptoms to watch for

vomitinglethargyurination changes

GI signs within 24 h; kidney injury 24-72 h

What to do now

EMERGENCY — vet or ASPCA APCC immediately

✔ Reviewed against ASPCA APCC · Pet Poison Helpline. Veterinary review pending — this page will carry a named, licensed veterinarian's sign-off after review (see team and editorial policy). General information only, not veterinary advice.

FAQ

How much red grapes can a dog eat?

Same risk as grapes; color makes no documented difference

What are the signs of red grapes problems in dogs?

Watch for: vomiting; lethargy; urination changes. GI signs within 24 h; kidney injury 24-72 h

What should I do if my dog ate red grapes?

EMERGENCY — vet or ASPCA APCC immediately

Related:

Can cats eat red grapes?

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