TailVilleWhy
Garlic and green onion in kimchi seasoning are alliums that can damage red blood cells and cause anemia. Capsaicin from chili irritates the gut, and salt and fermented seafood add a lot of sodium, leading to thirst and vomiting. Rinsing doesn't remove the seasoning that has soaked into the cabbage. Cats are even more sensitive to alliums.
How to give it / if eaten
If your pet snatched some kimchi, note how much and when, and call your vet for advice. For a larger amount, a small dog or a cat, go to a vet or emergency clinic right away. Keep fresh water available and don't induce vomiting at home without a vet's instruction.
Watch for these signs
Vomiting, diarrhea, drooling, heavy drinking and belly pain may appear first. Pale gums, tiring easily or reddish urine days later suggest anemia.
FAQ
Is kimchi okay if I rinse it first?
No. Garlic, onion compounds and salt stay inside the cabbage. If you want to share cabbage, cook plain, unseasoned cabbage instead.
What about white kimchi or water kimchi?
Even without chili, they contain garlic, green onion and salt, so avoid them too, including the brine.
General information only. Weight, age and health conditions change how a pet reacts, so ask your vet if you are worried.