Chocolate contains Theobromine, a chemical that is toxic to dogs. Chocolate toxicity is dose-dependent. It varies according to individual sensitivity, animal size, type of chocolate, and amount of chocolate ingested.
Chocolate toxicity potentially causes:
- muscle spasms
- increased thirst
- increased urination
- increased heart rate
- heart rhythm abnormalities
- coma, death
Grapes and raisins also cause toxic reactions in dogs. The toxicity is also dose-dependent. The exact mechanism is still unknown. Grape and raisin toxicity first causes gastrointestinal upsets, then progresses to sudden kidney failure and death.
- abdominal pain
- increased urination and increased drinking
It is safest not to feed your dog any amount of chocolate, grapes or raisins. Should your dog ingest any of the above, please contact your vet immediately.