Can they eat it? / Celery
Can horses eat celery?
Yes, a low-sugar crunch.
Good for horses that need to lose weight. Cut into short lengths to avoid strings catching.
Why
Celery is mostly water and fiber with very little sugar or starch, so it offers a low-calorie crunch and a little hydration. It is widely listed as safe for horses by equine guidance. The main concern is physical rather than chemical: the long, fibrous strings can catch in the teeth or throat, so chopping it into short pieces keeps it easy to chew and swallow.
How much is too much
For a 1,000 lb horse, a few short sticks or a small handful is a sensible treat, roughly a cup at most in a day. A large bunch at once is more than most horses need and can loosen manure. Ponies, miniatures and metabolic horses should get only a few small pieces, since even low-sugar treats add up across a day of extras.
Horses
Full-size horses in work or at pasture can have celery as an occasional snack after a ride or as a reward for good manners. Offer it cut into short lengths, one hand at a time, and keep it out of the feed in case a horse gulps it down. Treats should stay a small part of the daily diet, with hay remaining the foundation.
Ponies and easy keepers
Ponies, miniatures, seniors and insulin-resistant or laminitis-prone horses are better served with only a tiny piece now and then, or with a different treat entirely. Even low-sugar vegetables count toward the total intake, so keep portions very small. Ask your veterinarian or equine nutritionist how treats fit into a metabolic plan.
Safe alternatives
Short pieces of carrot, sliced apple without seeds in small amounts, or a few cucumber slices make good treats. Serve them chopped or cut into coins so they are easy to chew. Offer them by hand in a flat palm, and keep the portion small so the rest of the day's diet stays balanced.
Questions people ask
Can horses eat celery in their hay?
Celery can be mixed in with hay in small amounts, but it is better offered separately so you can control portions. Chopped pieces are less likely to cause choking than long stalks.
Is celery safe for horses after a frost?
Celery is generally fine, but avoid frost-bitten or wilted stalks, which can mould or ferment. Offer only fresh, crisp pieces and remove anything slimy or spoiled.
Can a foal eat celery?
Foals should not be given treats until they are eating hay and feed well. Ask your veterinarian before offering any vegetables to a young foal.
Safe for horses means: fine as an occasional treat, prepared as described.
General information from veterinary guidance, not a diagnosis. If you are worried, call your vet or a pet poison line: ASPCA Animal Poison Control (888) 426-4435. Charges may apply.
Written by Hoofdeck editors · updated Nov 13, 2026 · from ASPCA Animal Poison Control, Merck Veterinary Manual and university extension guidance.