Is dark chocolate good for rats?

Dark chocolate contains theobromine, which can be toxic to rats. The amount of theobromine in dark chocolate varies depending on the type of chocolate, but even small amounts can be harmful to rats. Symptoms of theobromine poisoning in rats include vomiting, diarrhea, seizures, and death.

In addition to theobromine, dark chocolate also contains caffeine and sugar, both of which can be harmful to rats in large amounts. Caffeine can cause heart palpitations, anxiety, and seizures in rats. Sugar can lead to weight gain, obesity, and diabetes in rats.

Therefore, it is best to avoid giving dark chocolate to rats altogether. There are many other healthy treats that you can give your rat instead, such as fresh fruits, vegetables, and whole grains.