Can dogs eat kale?

Yes, but it’s not a good idea. While kale will not likely kill a dog, it can cause or complicate other medical issues with your canine. Even though kale has become considered something of a superfood for humans, it contains several compounds that can harm a canine and if eaten in large quantities can become fatal.

In addition to containing isothiocyanates and calcium oxalate, both of which are bad for dogs, kale can also impede thyroid functions which can cause further problems for dogs.

Isothiocyanates help humans, but in dogs, they cause gastric irritation that can become severe. At the very least, it means your dog will have flatulence after eating kale. However, if kale comprises more than 25 percent of a dog’s diet it can become toxic (same with broccoli).

Calcium oxalate is another compound in kale that is not good for dogs because it can lead to kidney and bladder stones. While having stones isn’t fatal, they are painful and their removal may require surgery, which is always a risk with dogs. Other leafy vegetables similar to kale that also contain calcium oxalate and should be avoided by dogs prone to kidney or bladder stones are beet greens, collard greens, leeks, okra, parsley, quinoa, Swiss chard, and roots of beets.

In small doses, kale (and other calcium oxalate-containing vegetables) should not harm your dog, however, given the wide variety of options that can be given as treats most experts suggest feeding your canine something else as a treat. Cucumber, carrots, and green beans are each guilt-free options that are healthy for dogs.



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