TL;DR: Most healthy horses can eat peppermint safely in small amounts. Fresh peppermint leaves, dried peppermint and peppermint-flavored horse treats are the usual forms. Hard candy peppermints are popular but are mostly sugar, so keep them occasional. Horses with metabolic conditions, laminitis history or dental problems need veterinary advice first.
Walk into almost any barn and you will find a bag of peppermints somewhere. Horses seem to recognize the smell from across the aisle. The question most owners ask is whether that love of mint is actually safe.
This guide covers which forms of peppermint horses can eat, how much is sensible, which horses should skip it and how to use peppermint as a reward without creating a pushy horse.
Is Peppermint Safe for Horses?
Yes. Peppermint (Mentha piperita) is not toxic to horses. It has been used in equine feeds and treats for decades, both for flavor and because horses find the smell appealing.
The plant itself is the safe part. What matters more is the form it comes in and the amount a horse receives.
A few fresh leaves, a sprinkle of dried peppermint over feed or a bite-sized peppermint horse treat are all reasonable for a healthy adult horse.
Which Forms of Peppermint Can Horses Eat?
Fresh peppermint leaves
Fresh leaves from a garden or herb bed are fine in small handfuls. Rinse them, check for mold and make sure no other garden plants are mixed in. Many ornamental plants are harmful to horses, so only feed what you can positively identify.
Dried peppermint
Dried peppermint leaves are sold as a feed topper and used in horse treats. They keep well, are easy to measure and carry the same scent horses respond to. This is the form used in our Peppermint and Carrot horse treats, combined with carrot powder, rolled oats and ground flaxseed.
Peppermint horse treats
Commercial peppermint horse treats are made for horses, so the piece size, texture and ingredient list are designed with equine feeding in mind. Read the label the same way you would for any treat. Our guide to healthy horse treat ingredients explains what to look for.
Hard candy peppermints
The red and white candies are the most common barn treat in the United States. They are safe in the sense that they are not poisonous, but they are almost entirely sugar. One or two as an occasional reward is fine for a healthy horse. A handful a day is not a good habit, especially for easy keepers.
Peppermint essential oil
Do not feed peppermint essential oil. Concentrated oils are very different from the plant and can irritate the mouth and digestive tract. Some owners use diluted oils for scent work, but that is a separate topic and should be discussed with a veterinarian.
How Much Peppermint Can a Horse Have?
There is no official daily limit for peppermint. The sensible rule is the same as for any treat: small, counted and a minor part of the diet.
- Fresh leaves: a small handful, a few times a week
- Dried peppermint: a teaspoon to a tablespoon over feed, if used as a topper
- Peppermint horse treats: follow the feeding guidance on the pack, usually a few pieces per session
- Hard candies: one or two, occasionally
If you use peppermint treats for training, pre-count the pieces for each session. Our article on how many treats a horse can have walks through portion planning in detail.
Which Horses Should Avoid Peppermint?
Peppermint itself is low risk, but the treats it comes in often contain sugar, molasses or grain. Extra care is needed for horses with:
- Insulin dysregulation or equine metabolic syndrome
- A history of laminitis
- PPID (Cushing's disease)
- Obesity or strict weight management plans
- Dental problems that make hard treats difficult to chew
- Known sensitivities to a treat ingredient
For these horses, ask your veterinarian or an equine nutritionist before adding any new treat. A portion of the horse's normal approved feed is often the safest reward.
Why Do Horses Love Peppermint?
Horses have a strong sense of smell and tend to respond to aromatic plants. Peppermint has a sharp, clean scent that carries well, which is why a horse can pick it out from a pocket at ten paces.
That strong scent is useful. For picky eaters, a peppermint treat can be more motivating than a plain one. For medication, a peppermint flavor can help mask the smell of a pill or paste. For training, a reward the horse genuinely wants makes positive reinforcement work faster.
Using Peppermint as a Training Reward
Peppermint treats work well for groundwork, trailer loading, standing for the farrier and clicker training because horses want them and the pieces are small. See our guide to horse training treats for the pocket-sized pouch.
A few rules keep it safe:
- Reward only when the horse is standing politely with its head away from your pocket.
- Offer the treat on a flat palm, standing at the shoulder.
- Keep pieces small so you can reward often without overfeeding.
- Mix in non-food rewards such as a scratch or a rest so the horse does not expect food every time.
- Stop and go back to basic manners if the horse starts nudging or nipping.
If your horse is nervous rather than pushy, our guide to building trust with a nervous horse covers how to introduce rewards slowly.
Signs a Horse Is Not Tolerating a New Treat
Introduce any new treat gradually and watch for:
- Loose manure or diarrhea
- Reduced appetite
- Hives or swelling
- Signs of colic
- Unusual behavior
Stop feeding the treat and contact a veterinarian if any of these appear.
FAQs About Horses and Peppermint
Can horses eat peppermint candy?
Yes, in very small amounts. The candy is not toxic but is mostly sugar. One or two as an occasional treat is reasonable for a healthy horse.
Can horses eat peppermint leaves from the garden?
Yes, if you can positively identify the plant and it is clean and free of mold. Do not feed mixed garden clippings.
Is spearmint the same as peppermint for horses?
Spearmint is also safe for horses and is used in some feeds. Peppermint has a stronger scent, which is why it is more common in treats.
Can foals have peppermint?
Young horses should not be given treats until they are eating solid feed well, and even then only tiny amounts. Ask your veterinarian.
Are peppermint horse treats good for training?
Yes. The strong scent makes them motivating, and bite-sized pieces allow many repetitions without overfeeding. Look for a treat with a short ingredient list and clear feeding directions.
Final Thoughts
Peppermint is one of the safest and most popular flavors you can offer a horse. Keep the portions small, pick a form that suits your horse's health and use the strong scent to your advantage in training.
Ready to try it? Peppermint and Carrot horse treats come in a 6oz pouch for training and a 14oz jar for the feed room, with real dried peppermint leaves and no artificial colors or preservatives. Prefer a different flavor? Rein Treats makes premium horse treats in four recipes; see all horse treats.
This article provides general educational information and is not a replacement for advice from a veterinarian or qualified equine nutrition professional.
Horse care, nutrition and training needs vary by individual. For medical, dietary or serious behavior concerns, work with a qualified veterinarian or equine professional.
