Yes, in small amounts. Plain cooked Brussels sprouts are non-toxic to cats and safe as an occasional treat. Like other cruciferous vegetables they are gassy, so a large serving can cause bloating and loose stool; keep the portion small, cooked, and unseasoned.
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Safe — cooked plain, small amountsFine as a small, plain treat
Can cats eat brussels sprouts? 🥬
Yes, in small amounts. Plain cooked Brussels sprouts are non-toxic to cats and safe as an occasional treat. Like other cruciferous vegetables they are gassy, so a large serving can cause bloating and loose stool; keep the portion small, cooked, and unseasoned.
Source-linked record · Last reviewed July 17, 2026 · Not veterinary advice
Why this answer
Brussels sprouts contain no feline toxin and offer fiber and vitamins that are harmless in small cooked amounts, but as a cruciferous vegetable they are notably gas-producing and can cause bloating or loose stool if a cat eats several. They give an obligate carnivore little nutrition, so they stay a small, plain, occasional treat.
Watch for
Gas and bloating, which sprouts are known for
Loose stool after a larger serving
How much is okay
Half of one cooked sprout or a couple of small pieces, once or twice a week, plain and chopped.
Serve it safely
Steam or boil until soft, chop small, and serve plain.
Offer just a little, since sprouts are especially gassy.
Skip sprouts roasted in oil, bacon, salt, or garlic.
Sources and evidence notes (3)
Feeding Your Cat
Cornell Feline Health Center, Cornell University College of Veterinary Medicine — Feline nutrition fundamentals: cats are obligate carnivores; complete balanced cat food should be the diet base; treats should stay a small share of daily calories.
Petfoodology
Cummings School of Veterinary Medicine at Tufts University — Board-certified veterinary nutritionist guidance on pet diets, treat limits (about 10% of daily calories), human-food snacks, and species-appropriate feeding for cats and dogs.
People Foods to Avoid Feeding Your Pets
ASPCA Animal Poison Control Center — Multi-species veterinary toxicology list covering alcohol, chocolate, caffeine, citrus, coconut, grapes and raisins, macadamia nuts, milk and dairy, nuts, onions, garlic and chives, raw meat and eggs, salty snacks, xylitol, and yeast dough.
Answer card
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Remove access. Take the food away and move your cat to another room.
Note the facts. What was it, roughly how much is missing, and when? Keep the packaging.
Call before symptoms. For chocolate, onion, garlic, grapes, raisins, alcohol, or anything sugar-free (xylitol), call a hotline or your veterinarian now — early treatment is easier and cheaper.
Never do this
Do not induce vomiting, feed milk, salt, or oil, or wait overnight to "see how it goes". Signs of chocolate or Allium poisoning can take hours to days to appear.
Go to an emergency vet immediately if
Your cat is collapsing, twitching or seizing, struggling to breathe, drooling heavily, vomiting repeatedly, or wobbly on their feet.
Outside the US? Call your local emergency veterinary clinic — keep the number saved in your phone.
Effective: July 17, 2026
Can Cats Eat It? provides general educational information for cat owners. It is not veterinary, diagnostic, treatment, or emergency advice.
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