Horse Feeding Basics: Forage, Grains & Water
Vet-reviewed via PetHealth+ · Last reviewed June 2026
Horses are grazing animals — forage (hay or pasture) should be the bulk of the diet, with concentrates only if workload or body condition requires them. Fresh water must always be available.
Forage first
Minimum 1.5–2% body weight in forage daily.
Concentrates
Oats or commercial mixes for hard work or weight gain — introduce changes slowly.
Colic prevention
Consistent routine, gradual feed changes, and dental care reduce colic risk.
Related: How to care for a horse
Frequently asked questions
How much hay does a horse need?
Roughly 1.5–2% of body weight in dry matter daily — about 9–12 kg for a 500 kg horse.
Can horses eat lawn clippings?
No — clippings ferment rapidly and can cause colic or laminitis.
Should horses graze at night?
Continuous access to forage suits equine digestion — restrict grass if laminitis-prone.
Do horses need salt?
Free-choice salt blocks or loose salt support hydration and electrolyte balance.