Is Mangosteen toxic to dogs?

Mildly. The ASPCA lists mangosteen 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. Garcinia mangostana is not individually listed by the ASPCA, so its status is treated as uncertain; verify with a vet and err on caution. The ripe aril flesh contains no known toxic principle, but the bitter rind, latex and seeds can cause gastrointestinal upset, and any plant material may trigger vomiting in cats and dogs, so keep these parts away from pets.

Garcinia mangostana is not individually listed by the ASPCA, so its status is treated as uncertain; verify with a vet and err on caution. The ripe aril flesh contains no known toxic principle, but the bitter rind, latex and seeds can cause gastrointestinal upset, and any plant material may trigger vomiting in cats and dogs, so keep these parts away from pets. 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 mangosteen.

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.

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

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.