Vegetable
Can dogs eat broccoli?
A little. Broccoli is healthy in small amounts, but the florets contain isothiocyanates that can irritate the stomach in larger quantities.
Why Isothiocyanates (irritant in large amounts)
If your dog ate some
- A small amount usually causes nothing worse than a mild stomach upset.
- Offer water, skip the next treat and call your vet if vomiting or diarrhoea lasts more than a day or your pet seems unwell.
Signs to watch for
- Gas
- Vomiting
- Diarrhoea
How much, how often
Keep it below 10% of daily food — a floret or two.
Treats of any kind should stay under 10% of the day’s calories. Work out your pet’s calories
Serving it safely
- Steam or boil without seasoning
- Cut stalks small — they can cause choking
Dogs and cats, side by side
Dogs In moderation
Yes, a little. Broccoli is healthy in small amounts, but the florets contain isothiocyanates that can irritate the stomach in larger quantities.
How much: Keep it below 10% of daily food — a floret or two.
Cats In moderation
A little, cooked. Steamed broccoli is safe for cats as an occasional nibble.
How much: A small steamed floret.
Can cats eat broccoli?Safer treats your dog can have instead
Questions owners ask
Can dogs eat broccoli?
Yes, a little. Broccoli is healthy in small amounts, but the florets contain isothiocyanates that can irritate the stomach in larger quantities.
How much broccoli can a dog have?
Keep it below 10% of daily food — a floret or two.
What makes broccoli risky for dogs?
Isothiocyanates (irritant in large amounts).
What are the signs to watch for in dogs?
gas, vomiting, diarrhoea.
What should I do if my dog ate broccoli?
A small amount usually causes nothing worse than a mild stomach upset. Offer water, skip the next treat and call your vet if vomiting or diarrhoea lasts more than a day or your pet seems unwell.
Is broccoli safe for cats too?
A little, cooked. Steamed broccoli is safe for cats as an occasional nibble.
Sources
Tailwise is for general information and is reviewed by veterinary professionals, but it is not a substitute for advice from your own vet, who knows your pet. How we check facts



