What happens if dogs lick chocolate and how does it affect their health?

When dogs lick or eat chocolate, it can be toxic to them. Chocolate contains substances called theobromine and caffeine, which can cause symptoms like vomiting, diarrhea, increased heart rate, and even seizures in dogs. In severe cases, chocolate poisoning can be fatal for dogs. It is important to keep chocolate out of reach of pets to prevent them from getting sick.