Green: harmless
Yes, in pieces and in moderation. Dr. Glennon Mays of Texas A&M University School of Veterinary Medicine calls a sliced apple a wonderful treat for horses. But you shouldn't give your horse a whole apple.
Why the traffic light is green
There is nothing in apple flesh that is poisonous to horses. According to Mays, an apple even provides some potassium, calcium, phosphorus and fiber. The problem is the shape: According to Mays, a whole apple can cause a blockage in the throat, i.e. a food plug in the esophagus. The Merck Veterinary Manual calls pharyngeal obstruction by far the most common disease of the esophagus in horses.
There is also a special feature of the horse: it is practically unable to vomit. The sphincter at the entrance to the stomach is significantly stronger in horses than in other animals, explains veterinarian Joe Bertone in the specialist magazine EQUUS. Once swallowed, it has to go through the entire digestive tract.
What you should pay attention to
- Always cut into pieces: Bite-sized pieces reduce the risk of something getting stuck in the throat. This is what both Mays and horse scientist Janice Holland advise.
- A small handful is enough: Holland considers a small handful of bite-sized treats to be an appropriate limit for most horses. Mays puts it more succinctly: keep things in moderation.
- Be careful with EMS and laminitis: According to Holland, horses with metabolic problems should only be given small amounts of apples because of the sugar. Apple peels contain more fiber and less sugar. For horses with Equine Metabolic Syndrome (EMS), the Irish agricultural authority Teagasc recommends a ration with a maximum of 10 to 12 percent sugar and starch. It's best to discuss the exact amount with your vet.
- Introduce slowly: Sudden food changes can increase the risk of colic, according to Holland. A horse that has never had apples starts with one or two pieces.
- Reward instead of ritual: Mays advises giving treats rarely and as a surprise. If the apple becomes a permanent expectation, some horses start to demand it.
What to do if your horse has eaten apples?
A few pieces of apple are nothing to worry about. You become alert when your horse has swallowed a whole apple. According to the Merck Veterinary Manual, typical signs of throat obstruction include food coming out of the nostrils, excessive salivation, coughing, teeth grinding, restlessness and an elongated or bent neck. Some horses still try to eat. Then you immediately take away the food and water and call. According to Merck, the longer the plug sits, the greater the risk that the esophagus will be damaged.
If your horse has caught a large amount of fallen fruit and then appears restless or has a stomach ache, this is also a case for the veterinary practice.
If there are signs of a blocked throat or colic, call the veterinarian or the veterinary emergency service immediately.
Read more
- Can horses eat carrots?
- Can horses eat bananas?
- What can horses eat? The overview
- Horse weight calculator: How heavy is your horse?
- Buying a horse: the checklist
Quellen, abgerufen am 05.11.2026: Texas A&M College of Veterinary Medicine, Trick or treat: Give me something good to eat (Pet Talk) (mit Dr. Glennon Mays); TheHorse.com, What Holiday Foods Can I Share With My Horse? (Janice L. Holland, PhD); Merck Veterinary Manual, Disorders of the Esophagus in Horses (Jan F. Hawkins, DVM); EQUUS, Q&A: Why can't horses vomit? (Joe Bertone, DVM); Teagasc, Endocrine and Metabolic Disorders (Equine Health)
