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Pet safety

Is Brussels sprouts toxic to dogs?

Brassica oleracea var. gemmifera

Mildly toxic to dogs

Mildly. The ASPCA lists brussels sprouts as mildly toxic to dogs — a chewing dog typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. This classification follows the ASPCA Toxic and Non-Toxic Plant List. ASPCA-equivalent risk: Brassica oleracea contains isothiocyanates; small amounts are safe but large quantities cause GI upset and gas in cats and dogs.

What to do if your dog ate brussels sprouts

  1. Remove any plant material from your dog's mouth and move brussels sprouts out of reach.
  2. Note how much was eaten and when, and watch for drooling, vomiting, or lethargy.
  3. Do not induce vomiting unless a vet or poison-control specialist instructs you to.
  4. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice.
  5. Bring a leaf or photo of brussels sprouts to the appointment so it can be treated correctly.

General guidance, not veterinary advice. If you think your dog has eaten brussels sprouts, contact your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 — do not wait for symptoms to worsen.

Is brussels sprouts toxic to dogs? — FAQ

Is brussels sprouts toxic to dogs?

Mildly. The ASPCA lists brussels sprouts as mildly toxic to dogs — a chewing dog typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. ASPCA-equivalent risk: Brassica oleracea contains isothiocyanates; small amounts are safe but large quantities cause GI upset and gas in cats and dogs.

What are the symptoms if a dog eats brussels sprouts?

ASPCA-equivalent risk: Brassica oleracea contains isothiocyanates; small amounts are safe but large quantities cause GI upset and gas in cats and dogs. Signs usually appear soon after chewing rather than hours later — watch for drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy after your dog has had access to brussels sprouts.

What should I do if my dog ate brussels sprouts?

Stay calm. Remove any plant from your dog's mouth and take the plant away. Note how much was eaten and when, and do not induce vomiting unless told to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice; a leaf or photo helps the vet treat it correctly.

Is brussels sprouts toxic to cats too?

The ASPCA classification Growli uses applies to both cats and dogs: Brussels sprouts is mildly toxic to cats as well. See the full brussels sprouts pet-safety guide for both species.

What is a dog-safe alternative to brussels sprouts?

For a similar look without the risk, see the best dogs-safe plants list — every plant there is ASPCA non-toxic to cats and dogs.

Full brussels sprouts pet-safety