# Can Cats Eat Peppermint? Leaves, Candy and Oils Can cats eat peppermint? In most cases, no. A nibble of a fresh leaf may only cause mild stomach upset, but peppermint candy and concentrated peppermint oil can make your cat sick. Cats also lack an essential liver enzyme that helps process many plant compounds, so they clear these substances slowly [1]. This article is educational and is not a substitute for veterinary diagnosis or treatment. ## Quick Answer - Fresh peppermint leaves are not a true poison, but they can cause drooling, vomiting, and stomach upset in cats. - Peppermint candy is unsafe. It often contains sugar, chocolate, or xylitol, and xylitol is a well-known dog poison. - Peppermint essential oil is the most dangerous form. It is linked to drooling, vomiting, tremors, wobbliness, breathing trouble, slow heart rate, low body temperature, and liver failure in cats [1]. - Cats should not eat peppermint plant material as a treat. There is no nutritional need for it. - If your cat ate peppermint oil or a large amount of candy, call your veterinarian or a pet poison hotline right away. ## Is Peppermint Safe for Cats? Peppermint is not a classic toxin like antifreeze or rat bait, but that does not make it safe. The plant contains menthol and other volatile compounds, and concentrated versions of those compounds are the problem. Cats are very sensitive to phenols and phenolic compounds found in some essential oils, and the higher the concentration, the greater the risk [1]. Your cat's liver works differently from yours. Cats lack an essential enzyme in the liver, so they have trouble metabolizing and eliminating certain toxins like essential oils [1]. That means a small exposure that barely affects a person can hit a cat much harder. The form matters more than the plant itself. A single fresh leaf is a very different situation from a drop of 100% peppermint oil. Peppermint oil is on the list of essential oils known to cause poisoning in cats [1]. ## Can Cats Eat Peppermint Leaves? A cat that chews one peppermint leaf will probably be fine, but that does not mean leaves are a good treat. The leaf still contains menthol and small amounts of volatile oils. Eating several leaves can lead to drooling, vomiting, or loose stool. Some cats seem attracted to minty smells, which is why they may nibble a houseplant. Others are repelled by the strong scent. Either way, peppermint leaves offer your cat nothing it needs. Cats are obligate carnivores, and their bodies are built to get nutrients from animal tissue, not herbs. If your cat eats a leaf or two, watch it for a few hours. If it eats a whole handful, call your veterinarian for advice. ## Can Cats Eat Peppermint Candy? No. Peppermint candy is a poor choice for cats for several reasons. The sugar alone can cause stomach upset and loose stool. Many candies also contain chocolate, which is toxic to cats, or xylitol, a sugar alcohol that causes dangerous low blood sugar and liver failure in dogs. A controlled study in cats did not find the same effects, so xylitol is not considered highly toxic to cats the way it is to dogs. Even so, sugar-free products do not belong in a cat's diet, and a candy that contains xylitol should never be offered. Hard candy is also a choking hazard. It can lodge in the throat or cause an obstruction if swallowed. Candy wrappers add another risk because they can block the intestines. If your cat ate a piece of peppermint candy, check the label first. If it contains chocolate or xylitol, call your veterinarian or a pet poison hotline. If it was plain sugar candy and your cat is small, a call is still reasonable. ## Can Cats Eat the Peppermint Plant? The peppermint plant (Mentha × piperita) is the source of both the leaves and the oil. Chewing the plant is less risky than drinking the oil, but it is still not a safe snack. Peppermint tincture, a liquid made from the leaves or aerial parts of the plant, has been reviewed as a feed additive for animals. Safe levels in complete feed vary widely by species, from 64 mg/kg for chickens for fattening to 289 mg/kg for some species, and those numbers apply to manufactured feed, not to a cat eating a plant at home [2]. There is no established safe treat amount for cats. Peppermint oil has also been reviewed as a feed additive. It is considered safe for animal species at a maximum use level of 12 mg/kg complete feed, and the panel noted that the oil should be considered an irritant to skin and eyes and a dermal and respiratory irritant [3]. Again, that is about formulated feed, not about a cat licking a bottle of oil. Keep peppermint plants out of reach if your cat likes to chew on greenery. If you want to give your cat safe plant material, cat grass is a better option. ## Risks of Peppermint for Cats ### Essential Oil Poisoning Peppermint oil is one of the essential oils known to cause poisoning in cats [1]. Essential oils are rapidly absorbed both orally and through the skin, then metabolized in the liver, which is exactly where cats struggle [1]. Symptoms depend on the oil and the amount, and can include drooling, vomiting, tremors, ataxia (wobbliness), respiratory distress, low heart rate, low body temperature, and liver failure [1]. Diffusers, liquid potpourri, balms, and massage oils are common household sources. A cat walking across a counter with spilled oil can absorb it through its paws. ### Skin and Eye Irritation Peppermint oil is an irritant to skin and eyes [3]. If your cat brushes against a spill or you apply a menthol product to your cat, the skin can become red, itchy, or painful. Cats that get oil on their paws often drool after grooming it off. ### Stomach Upset Drooling and vomiting are the most common signs after a cat eats peppermint leaves or candy. These signs are not harmless if they continue. Ongoing vomiting can lead to dehydration, especially in older cats or cats with other health problems. ### Additives in Candy and Gum Peppermint-flavored gum, mints, and baked goods can contain xylitol, chocolate, raisins, macadamia nuts, salt, garlic, or onion powder. Garlic and onion damage red blood cells in cats. Chocolate contains theobromine and caffeine. These ingredients raise the risk far above the peppermint itself. ### Choking and Blockage Hard candy, gum, and wrappers can choke a cat or cause an intestinal obstruction. Signs include gagging, pawing at the mouth, repeated swallowing, vomiting, and not eating. ## Peppermint Forms at a Glance | Form | Safe? | Notes | |---|---|---| | Fresh peppermint leaves | Not recommended | Can cause drooling, vomiting, and stomach upset. No nutritional benefit. | | Dried peppermint leaves | Not recommended | More concentrated than fresh. Same risks. | | Peppermint tea | Not recommended | May contain other ingredients. Caffeine is a concern in some blends. | | Peppermint candy or gum | Unsafe | Sugar, chocolate, xylitol, and choking risk. | | Peppermint essential oil | Unsafe | Linked to drooling, vomiting, tremors, wobbliness, breathing trouble, slow heart rate, low body temperature, and liver failure [1]. | | Peppermint balm or rub | Unsafe | Skin absorption and grooming. Irritating to skin and eyes [3]. | | Peppermint plant in the yard | Keep out of reach | Chewing the plant is less risky than the oil but still not safe. | ## How to Offer Peppermint Safely The safest approach is not to offer peppermint at all. Your cat does not need it, and there is no established safe amount for a cat at home. If your cat already ate a small piece of a fresh leaf, remove the rest of the plant and watch for drooling, vomiting, or wobbliness. Do not induce vomiting unless a veterinarian tells you to. Store all essential oils in closed cabinets that your cat cannot open. Do not use peppermint oil in diffusers around cats, and do not apply menthol rubs to your cat or to your own skin where your cat may lick you. Wipe up spills right away, and wash your hands after using any mint product. If you use peppermint toothpaste, keep the tube out of reach. Most pet toothpastes are poultry or malt flavored for a reason. For more on what cats can and cannot eat, see [Can Cats Eat Eggs](/knowledge/veterinary-medicine/clinical-methods/can-cats-eat-eggs) and [Can Cats Eat Hot Dogs](/knowledge/veterinary-medicine/clinical-methods/can-cats-eat-hot-dogs). ## What to Do If Your Cat Ate Peppermint First, figure out what your cat actually ate. A leaf, a candy, or a drop of oil are three very different situations. If your cat ate peppermint essential oil, a menthol balm, or a large amount of candy, call your veterinarian or a pet poison hotline right away. Do not wait for symptoms. Signs of essential oil poisoning can include drooling, vomiting, tremors, wobbliness, breathing trouble, slow heart rate, low body temperature, and liver failure [1]. If your cat ate one or two fresh leaves and seems normal, you can call your veterinarian for advice and monitor at home. Watch for drooling, vomiting, diarrhea, pawing at the mouth, or unusual tiredness. If your cat ate candy, check the label for chocolate, xylitol, raisins, or nuts. Tell your veterinarian exactly what was in it and how much your cat ate. Bring the wrapper or a photo of the label if you can. Never give your cat human medications or home remedies to settle its stomach unless your veterinarian tells you to. Some of those products contain additional toxins. ## Safer Alternatives If you want to give your cat a treat, stick with cat-specific products. Commercial cat treats, small pieces of cooked plain meat, and a bit of cooked egg are better choices than any mint product. For more ideas, see [Can Cats Eat Tuna And Vegetable Oil](/knowledge/veterinary-medicine/clinical-methods/can-cats-eat-tuna-and-vegetable-oil). For dental health, use veterinary toothpaste and a cat toothbrush. Do not use human toothpaste, which often contains peppermint oil, fluoride, and xylitol. If you want to freshen your home, skip essential oil diffusers. Open a window or use a pet-safe air filter instead. If you want to give your cat something to chew, cat grass or a cat-safe toy is a better option than a mint plant. If you are looking for joint support, talk to your veterinarian about proven options. Some owners ask about green-lipped mussels, and you can read more at [Can Cats Eat Mussels? Green-Lipped Mussel Joint Benefits](/knowledge/veterinary-medicine/toxicology-food-safety/can-cats-eat-mussels-green-lipped-mussel-joint-benefits). Never give a supplement without checking with your veterinarian first. ## Limitations and When to Contact a Veterinarian This article covers general information, not your cat's specific case. Individual cases need a veterinarian who can examine your cat, ask about the exact exposure, and decide on treatment. Call your veterinarian or a pet poison hotline the same day if your cat ate peppermint candy, a menthol balm, or more than a leaf or two of the plant, even if it seems fine right now. Go to an emergency clinic now if your cat is drooling heavily, vomiting repeatedly, wobbling, trembling, breathing fast or with effort, has a slow heart rate, feels cold to the touch, or is collapsed or unresponsive. These are signs that match essential oil poisoning in cats [1]. Schedule a routine visit if your cat had a mild exposure and seems normal but you want it checked. Your veterinarian can decide whether blood work is needed. ## Frequently Asked Questions ### Can cats eat peppermint leaves without getting sick? A single small leaf may cause no signs, but leaves can still trigger drooling, vomiting, or stomach upset. There is no safe or useful reason to feed peppermint leaves to a cat. If your cat eats several leaves, call your veterinarian for advice. ### Can cats eat peppermint candy? No. Candy adds sugar, possible chocolate or xylitol, and a choking risk on top of the peppermint. Xylitol is a well-known dog poison, and sugar-free products do not belong in a cat's diet. If your cat ate candy, check the label and call your veterinarian. ### Is peppermint essential oil dangerous to cats? Yes. Peppermint oil is on the list of essential oils known to cause poisoning in cats, with signs that include drooling, vomiting, tremors, wobbliness, breathing trouble, slow heart rate, low body temperature, and liver failure [1]. Cats also lack an essential liver enzyme needed to process many plant compounds [1]. Treat any exposure as an emergency. ### Can I use a peppermint diffuser around my cat? It is safer not to. Essential oils are absorbed through the air, skin, and mouth, and cats clear them slowly [1]. Peppermint oil is also an irritant to skin, eyes, and the respiratory tract [3]. If you must use mint products, keep them in a room your cat cannot enter. ### What should I do if my cat licked peppermint oil? Call your veterinarian or a pet poison hotline right away, even if your cat seems normal. Do not induce vomiting unless a veterinarian tells you to. Watch for drooling, vomiting, wobbliness, tremors, breathing changes, or unusual sleepiness, and bring the product label with you if you go in. ## Related Articles - [Can Cats Eat Eggs](/knowledge/veterinary-medicine/clinical-methods/can-cats-eat-eggs) - [Can Cats Eat Hot Dogs](/knowledge/veterinary-medicine/clinical-methods/can-cats-eat-hot-dogs) - [Can Cats Eat Ice Cream? Xylitol Sugar and Lactose](/knowledge/veterinary-medicine/toxicology-food-safety/can-cats-eat-ice-cream-xylitol-sugar-and-lactose) - [Can Cats Eat Tuna And Vegetable Oil](/knowledge/veterinary-medicine/clinical-methods/can-cats-eat-tuna-and-vegetable-oil) - [Can Cats Eat Mussels? Green-Lipped Mussel Joint Benefits](/knowledge/veterinary-medicine/toxicology-food-safety/can-cats-eat-mussels-green-lipped-mussel-joint-benefits) - [Can Dogs Eat Cat Food](/knowledge/veterinary-medicine/nutrition/can-dogs-eat-cat-food) - [Is Peppermint Oil Toxic to Cats? Diffuser and Smell Risks](/knowledge/veterinary-medicine/toxicology-and-food-safety/peppermint-oil-toxic-cats) - [Can Cats Eat Mint? Which Mints Are Safe and Which Are Toxic](/knowledge/veterinary-medicine/toxicology-and-food-safety/can-cats-eat-mint) - [Can Cats Eat Oregano? Leaves, Oil, and Spice](/knowledge/veterinary-medicine/toxicology-and-food-safety/can-cats-eat-oregano) ## References 1. [Essential Oils and Cats](https://www.petpoisonhelpline.com/uncategorized/essential-oils-cats/). Pet Poison Helpline. 2. [Safety and efficacy of a feed additive consisting of a tincture derived from the leaves or the aerial parts of Mentha × piperita L. (peppermint tincture) for use in all animal species (FEFANA asbl)](https://pubmed.ncbi.nlm.nih.gov/40741364/). EFSA journal. European Food Safety Authority, 2025. 3. [Safety and efficacy of a feed additive consisting of an essential oil derived from the aerial parts of Mentha × piperita L. (peppermint oil) for use in all animal species (FEFANA asbl)](https://pubmed.ncbi.nlm.nih.gov/39816967/). EFSA journal. European Food Safety Authority, 2025. ## Further Reading - [ASPCA: Toxic and Non-Toxic Plants List](https://www.aspca.org/pet-care/aspca-poison-control/toxic-and-non-toxic-plants) - [ASPCA Animal Poison Control Center](https://www.aspca.org/pet-care/animal-poison-control) - [ASPCA: People Foods to Avoid Feeding Your Pets](https://www.aspca.org/pet-care/aspca-poison-control/people-foods-avoid-feeding-your-pets)