While kale is often considered a superfood for humans, the rules are different for your dog. They can eat it in very small amounts, but excessive consumption presents real health risks.

Quick verdict

  • For dogs: Allowed, but in strict moderation.
  • To remember: Always cook it and serve in small quantities to avoid kidney or thyroid issues.

Is kale toxic to dogs?

Kale is not fatal to dogs, but it contains calcium oxalates and isothiocyanates. If consumed in large amounts, these compounds can become toxic and cause serious health issues.

What are the possible benefits?

  • Rich in vitamins (K, A, C) and minerals.
  • Contains antioxidants.
  • Good source of fiber.

The real risks to know

  • Kidney stones: Oxalates can promote the formation of stones in the bladder or kidneys.
  • Thyroid issues: Isothiocyanates can interfere with thyroid function if eaten too often.
  • Gas and bloating: Like all types of cabbage, kale can ferment in the stomach.

How much to give your dog?

  • Small dogs: 1/2 of a small cooked leaf, very occasionally.
  • Medium dogs: 1 small cooked leaf.
  • Large dogs: 1 to 2 cooked leaves maximum.

How to prepare it?

  1. Remove the tough central stem, which is highly indigestible.
  2. Wash the leaves thoroughly.
  3. It is essential to cook it (such as by steaming) to reduce the oxalate content.
  4. Chop the leaves finely before offering them to your dog.

My dog ate a lot of kale: what should I do?

If your dog managed to eat a large dish of kale, monitor them. They are likely to experience bad gas and stomach aches. However, if your dog has a history of kidney stones, contact your veterinarian as a precaution.

Safer alternatives

  • Cooked zucchini (safe and digestible).
  • Well-cooked green beans.
  • Cooked carrots.

How can APPETTO help you?

APPETTO helps you separate fact from fiction regarding superfoods and easily compare your dog’s kibble using the Pet-Score®. Download APPETTO.

FAQ

Is kale toxic to my dog?

Not in small amounts, but an excess can cause kidney stones and thyroid issues.

Can my dog eat raw kale?

No, it must always be cooked to ease digestion and reduce oxalates.

My dog has kidney problems, can they eat it?

No, it is absolutely not recommended for dogs with a history of kidney stones.