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Rabbits › Food Safety › Hay (Timothy & Grass)

Can Rabbits Eat Hay (Timothy & Grass)? Yes — It Is the Diet

✓ Verdict verifiedSources: House Rabbit Society · House Rabbit SocietyVerified: Oct 18, 2026
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Verdict: FOUNDATION — unlimited hay daily

Hay is not a side dish — it is the diet. HRS: about 80% grass hay, unlimited, every day.

This page is educational and not a substitute for veterinary advice. If your rabbit seems unwell after eating anything, call your vet — or the ASPCA Poison Control hotline (888) 426-4435.

Is hay (timothy & grass) good for rabbits?

A rabbit’s diet is a pyramid with hay at the base: roughly 80% grass hay, 10–15% leafy greens, and a small daily pellet portion (House Rabbit Society model). Anything outside that pyramid is a treat — and sugar is the enemy of the gut flora that keeps a rabbit alive.

HRS is emphatic: hay keeps cecal flora balanced, grinds down continuously growing teeth, and provides the roughage that prevents hairballs and blockages. "Hay is the foundation of a healthy rabbit diet, not processed pellets." Grass hays (timothy, orchard, brome, oat) are best for adults.

How much hay (timothy & grass) can a rabbit have?

Unlimited fresh hay daily — refill before the bowl empties. Alfalfa is for growing kits only, too rich for adults.

How to serve it

Eating hay all day also keeps a rabbit behaviorally busy — boredom chewing shrinks when hay is boring-present.

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can rabbits eat hay

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People also ask

Can rabbits eat hay (timothy & grass)?

Hay is not a side dish — it is the diet. HRS: about 80% grass hay, unlimited, every day.

How much hay (timothy & grass) can a rabbit have?

Unlimited fresh hay daily — refill before the bowl empties. Alfalfa is for growing kits only, too rich for adults.

What happens if a rabbit eats too much hay (timothy & grass)?

HRS is emphatic: hay keeps cecal flora balanced, grinds down continuously growing teeth, and provides the roughage that prevents hairballs and blockages. "Hay is the foundation of a healthy rabbit diet, not processed pellets." Grass hays (timothy, orchard, brome, oat) are best for adults. Overfeeding sugar- or starch-heavy food is the classic route to GI stasis — the most common rabbit emergency.

Sources & verification (three-field discipline)