Question: is mint toxic to dogs?
Answer: The Stats: Peppermint (mentha balsamea) may soothe your dog's nausea and upset stomach, but in large quantities it can also cause liver or kidney problems. Similarly, spearmint (mentha spicata) can freshen your dog's breath and repel fleas, but larger doses could cause diarrhea or vomiting, so proper portioning is key.