Quick Answer
Only in moderation. Horses can eat corn, but it carries risks due to its high starch content. Starch is digested in the small intestine, but excess starch passes to the hindgut, where it ferments rapidly, causing gas, colic, or laminitis. Corn should be fed as a treat or supplement, not a staple, and always introduced slowly. ## Is Corn Safe for Horses?
Corn is safe for horses when fed correctly, but it poses significant risks if overfed. Whole corn kernels are hard and can be difficult to chew, leading to choking or impaction. Cracked, rolled, or flaked corn is easier to digest. Horses with metabolic issues like insulin resistance or a history of laminitis should avoid corn due to its high glycemic index. Always consult a large-animal vet before adding corn to your horse’s diet. ## Benefits
– Energy source: Corn is high in calories from carbohydrates, making it a good energy supplement for performance horses or those needing weight gain.
– Palatability: Most horses enjoy the taste of corn, making it useful for hiding medications.
– Fat content: Corn contains about 4% fat, providing essential fatty acids for coat health.
– Vitamins and minerals: Corn offers B vitamins, vitamin E, and phosphorus, though in modest amounts. ## Risks and Precautions
– High starch: Can cause hindgut acidosis, colic, and laminitis if overfed.
– Choking hazard: Whole corn kernels can lodge in the esophagus; always soak or process corn.
– Mold risk: Corn is prone to mold toxins like aflatoxin, which can cause liver damage.
– Nutritional imbalance: Corn is low in protein, calcium, and fiber; relying on it can lead to deficiencies.
– Overfeeding: Leads to obesity and related metabolic disorders. ## How to Feed It Safely
– Portion: Limit to 1-2 pounds per day for a 1,000-pound horse, split into multiple meals.
– Processing: Feed cracked, rolled, flaked, or steam-flaked corn; never whole kernels.
– Introduction: Start with a handful (0.25 lb) per day and increase slowly over 10 days.
– Frequency: No more than once daily; avoid feeding with other high-starch grains.
– Soaking: Soak corn for 12-24 hours to soften and reduce choking risk.
– Storage: Keep in a cool, dry place to prevent mold. ## Bottom Line
Corn can be a safe occasional treat or energy supplement for healthy horses when fed in moderation. However, its high starch content means it should never be a dietary staple. Always prioritize hay or pasture as the main forage. If your horse has health issues, skip corn entirely and consult an exotic/large-animal vet.
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What you need to know
Corn is fed to horses as a grain, and in the right form and amount it is a safe, energy-dense feed. It is starchy, so it provides plenty of calories, which can suit horses in hard work but is unhelpful for easy keepers. Sweetcorn off the cob as an occasional treat is also tolerated by many horses.
The risks centre on starch overload and mould. Too much corn at once can disturb the hindgut and raise colic and laminitis risk, so any grain should be fed in measured, frequent small amounts. Mouldy corn is especially dangerous and must never be fed. Avoid whole cobs, which pose a choke and blockage risk. If you feed corn as grain, introduce changes slowly and weigh portions rather than guessing.