Would Cinnamon Harm a Dog?

The good news is that cinnamon is not toxic to dogs. ... The helpline also warns that a large cinnamon overdose can lead to vomiting, diarrhea, changes in heart rate, low blood sugar, and liver disease.

What does cinnamon do to a dog?

Cinnamon is non-toxic to dogs according to the ASPCA. In small amounts, which means one teaspoon or less per serving as an occasional treat, it is perfectly safe and may even offer health benefits. However, in large quantities, it may irritate the mouth or stomach, cause low blood sugar or even liver disease.

How much cinnamon can hurt a dog?

Research suggests that the amount of cinnamon that's safe for your dog is dependent on his weight. So, if your dog weighs 1-10 pounds (tiny, little pups), you shouldn't give him more than 1/8 teaspoon daily. If, however, you have a dog that's over 100 pounds, you can likely give him up to 2 teaspoons safely.