

By Kevin Hughes
Published: 04/23/2024, edited: 06/14/2024
Reviewed by a licensed veterinary professional: Dr. Linda Simon, MVB MRCVS
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It’s best to give your dog a very small amount of kale, suitable to its size — this might be as little as a teaspoon’s worth for small breeds — that’s been boiled or steamed, which makes it easier for your pup to digest. It has to be plain. While we might choose to flavor kale with salt, pepper or spices, all of these ingredients can upset a dog’s more delicate and sensitive stomach.
Cooking kale with onions and/or garlic? Definitely don’t pass some of that to your dog! Both onions and garlic are toxic to canines.

It can be, if fed in moderation. Kale contains lots of fiber, so it can have a positive or negative effect on your dog’s digestive system. Occasional small amounts of kale can have a benefit; if your dog is suffering with constipation, it could alleviate the condition. On the other hand, feed too much kale to your dog and it could easily have the opposite effect.
Not only that, like spinach, kale is a source of something called calcium oxalate. Why is this a potential problem? Well, if your dog already has kidney issues, don’t feed it kale at all — it can lead to kidney stones or bladder stones.
Small amounts given to your dog now and again probably won’t cause any issues. But, speak to your vet if you have any concerns and observe your dog after it’s eaten kale. If there’s any adverse reaction, then you know to avoid feeding your pup any kale again in the future.
To sum up, a little plain, boiled kale every so often is likely to be harmless to your dog. Try giving your dog a very small amount, if you’re preparing kale for a meal for yourself. However, it’s not a food dogs need in their diet and there’s a good chance yours won’t even like it anyway. It’s not high up in the list of tastiest food for dogs, compared to meat!
