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Can dogs eat kale?
Last updated 2026-05-08 · Sourced from ASPCA & Merck Veterinary Manual
Sometimes — with caution
Contains calcium oxalate and isothiocyanates — large amounts may cause bladder/kidney issues.
The short answer
Sometimes — with caution — dogs should only have small amounts of kale. Small amounts okay Curly dark leafy green.
Why be careful
Contains calcium oxalate and isothiocyanates — large amounts may cause bladder/kidney issues.
Symptoms to watch for
GI upset; long-term excess can affect kidneys.
What every dog owner should know
- Occasional treat only
- Steamed easier to digest
What to do if your dog ate kale
- Stay calm and assess how much was eaten and when.
- Call your vet or ASPCA Animal Poison Control at 888-426-4435 (consultation fee may apply).
- Alternatively, Pet Poison Helpline: 855-764-7661.
- Do not induce vomiting unless explicitly instructed by a vet.
- Have product packaging or the food itself ready to describe to the vet.
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Puppy safety
Generally avoid feeding kale to puppies. Their digestive systems are still developing and they're more sensitive to changes in diet, fat, sodium, and lactose than adults. If you've already given some, watch for vomiting, diarrhea, or lethargy and contact your vet if any appear.
What to do if your dog ate kale
- Note how much was eaten and when. A small amount is rarely an emergency, but a large quantity may need vet attention.
- Watch for symptoms over the next 12–24 hours: vomiting, diarrhea, lethargy, loss of appetite, or changes in drinking/urination.
- Provide fresh water and skip the next meal if your pet seems unsettled — let their stomach calm down.
- Call your vet if symptoms appear or persist beyond 24 hours, or if the amount eaten was significant.
Better alternatives
If your dog likes kale, they may also enjoy these safe options:
Frequently asked questions
Is kale toxic to dogs?
Not strictly toxic, but contains calcium oxalate and isothiocyanates — large amounts may cause bladder/kidney issues.
How much kale is too much?
Any amount carries some risk. If you choose to feed kale, keep it to a tiny taste — not a regular treat.
Can puppies eat kale?
Avoid giving kale to puppies. Their digestive systems are still developing.
What are the symptoms of kale poisoning in dogs?
GI upset; long-term excess can affect kidneys.
What should I do if my dog ate kale?
Watch for symptoms over the next 24 hours and contact your vet if anything concerning develops.
Frequently asked questions
Can dogs eat kale?
Sometimes — with caution. Contains calcium oxalate and isothiocyanates — large amounts may cause bladder/kidney issues.
What happens if a dog eats kale?
GI upset; long-term excess can affect kidneys.
Is kale toxic to dogs?
Kale carries some risk for dogs. Contains calcium oxalate and isothiocyanates — large amounts may cause bladder/kidney issues.