Cats should generally not eat regular mint plants like spearmint or peppermint because they contain essential oils that are toxic to cats in large amounts. However, a small nibble usually won't cause harm. The toxic effects of mint are mainly due to essential oils such as salicylates, leading to symptoms like vomiting, nausea, diarrhea, and upset stomach in cats if ingested in significant amounts. Cats are usually attracted to catnip, which is part of the mint family but distinct and generally safe for cats to nibble on in moderation. Only certain types of mint, especially Mentha pulegium (pennyroyal), are highly toxic. Most garden mint should be kept away from cats to avoid any risk of poisoning, but if a cat ingests just a small amount, it typically will not get severely sick. If a cat shows signs of mint poisoning, a veterinary visit is recommended. In summary:
- Regular mint (peppermint, spearmint) can be toxic and should be avoided.
- Small accidental nibbles are usually not dangerous.
- Catnip (often called cat mint) is generally safe and induces harmless behavioral effects in many cats.
- Symptoms of mint poisoning include vomiting, diarrhea, nausea, and upset stomach, requiring vet attention if severe.
- Essential oils in mint are the main toxic substance, and inhalation or skin exposure to concentrated oils can also be harmful to cats.
This advice is based on veterinarian-reviewed sources and poison control databases for pets.
