Can Dogs Eat Kale?
In small amounts, yes. Kale is nutritious but rich in calcium oxalate, so it shouldn't become a daily habit — especially for stone-prone dogs.
Quick facts
| Verdict | Caution |
|---|---|
| Risky amount | No safe or toxic dose is established — treat any amount as a risk. |
| Key symptoms | Gas and bloating, Soft stool or diarrhea, Stomach upset after larger portions |
| What to do | A stolen kale leaf is not an emergency. Call your vet if your dog shows repeated vomiting, straining to urinate, or blood in the urine. |
Good vegetable, wrong daily habit
Kale earns its health halo — fiber, vitamins K, A and C, antioxidants — and a small amount does a dog no harm. The catch is what comes with it: kale is one of the higher calcium-oxalate greens, like spinach. Oxalate is the building block of a common type of bladder and kidney stone, so a daily kale habit is exactly the wrong pattern, particularly for stone-prone breeds and dogs with kidney issues.
Cruciferous greens also ferment enthusiastically in a dog’s gut. The immediate price of overdoing it is usually gas and loose stool rather than anything dramatic.
How to feed kale safely
- Keep it occasional — a topper, not an ingredient.
- Chop it and steam it lightly; plain, no salt, oil or garlic.
- Skip kale entirely for dogs with a history of bladder or kidney stones, and ask your vet before adding it for dogs with kidney disease.
- For an everyday green, green beans are the safer default.
If your dog ate a lot of kale
Expect gas and possibly a day of soft stool — unpleasant, not dangerous. Call your vet if vomiting repeats, or if you ever see straining to urinate or blood in the urine, which are stone signs worth checking regardless of cause.
If your dog ate it
A stolen kale leaf is not an emergency. Call your vet if your dog shows repeated vomiting, straining to urinate, or blood in the urine.
In the US you can also call the ASPCA Animal Poison Control Center at (888) 426-4435 (a consultation fee may apply).
Frequently asked questions
- Is kale toxic to dogs?
- No. Kale isn't toxic, and a small amount now and then is fine for most dogs. The caution is about regular, larger servings — kale's oxalates and its knack for causing gas argue against making it a daily ingredient.
- Why are oxalates in kale a problem for dogs?
- Calcium oxalate is the material of one common type of bladder and kidney stone. Feeding oxalate-rich greens frequently adds to that load, which matters most for breeds and individuals already prone to stones.
- Is cooked kale better than raw for dogs?
- Lightly steaming kale softens the tough fiber and makes it easier to digest, so it's a good middle ground. Serve it plain — no oil, salt, garlic or dressing.
- What greens are safer to feed every day?
- Green beans, cucumber and lettuce are lower-risk everyday options. They deliver the crunch and low calories without kale's oxalate load.
See all vegetables dogs can and can’t eat →