If your dog ate garlic

Call your vet, especially if a large amount was eaten or it was eaten repeatedly. Your vet may suggest blood tests over the following days.

Call your vet or a 24/7 animal poison line now: ASPCA Animal Poison Control (888) 426-4435 · Pet Poison Helpline (855) 764-7661

What makes it harmful
Thiosulfates and related sulfur compounds
Harmful amount
No safe amount is established; garlic is more potent than onion, and repeated small amounts add up
Signs appear
Signs of anaemia usually appear after a few days

Symptoms to watch for

  • Vomiting
  • Pale gums
  • Lethargy
  • Fast breathing
  • Dark urine

Why

Garlic is often sold as a natural flea remedy for dogs; there is no good evidence it works, and it carries a real risk of anaemia. Garlic powder and garlic bread are common sources.

Sources

General information checked against published veterinary sources. Every dog is different — ask your vet before changing its diet, and call them if it seems unwell.