What Do Rabbits Actually Eat? The Pellet Myth and the Truth About Hay
Most rabbit owners buy pellets. They fill the bowl, the rabbit eats them quickly, and it looks like a complete meal. The problem is that pellets are not a complete rabbit diet. They are a supplement, and in most household rabbits, they are fed in quantities that cause the same problems grain-heavy diets cause in any other species: obesity, soft cecotropes, dental disease, and a shortened lifespan.
The single most important thing a rabbit eats is hay. Not as a side. Not occasionally. All day, every day, freely available. If you understand only one thing about rabbit nutrition, it's this. Everything else in the diet exists in relation to it.
Why Hay Is the Foundation
Rabbits have continuously growing teeth. The upper and lower molars grind together as the rabbit chews, and this grinding action wears the teeth down to the correct length. Hay, specifically grass hay with a coarse, fibrous texture, provides the lateral chewing motion that keeps teeth properly aligned. Pellets are too soft. Vegetables are too soft. Neither can substitute for hay in terms of dental maintenance.
According to VCA Animal Hospitals, high-quality grass hay, including timothy, oat hay, and orchard grass, should make up 80 to 90 percent of a rabbit's total diet. It should be fresh, sweet-smelling, and available in unlimited quantities at all times. The fiber in hay also keeps the digestive system moving. Rabbits have a complex gastrointestinal tract that requires constant motility. GI stasis, a potentially fatal slowing of digestion, is far more common in rabbits fed low-fiber diets.
What About Alfalfa Hay?
Alfalfa hay is a legume, not a grass, and it is significantly higher in calcium and protein than grass hay. For young rabbits under six months of age, alfalfa provides the additional nutrients needed for growth. For adult rabbits, it is too rich. Regular alfalfa consumption in adult rabbits is linked to urinary sludge and bladder stones from calcium buildup, and the extra protein contributes to obesity. Adult rabbits should eat grass hay only. VCA Animal Hospitals specifically cautions against alfalfa for adult rabbits for these reasons.
Pellets: How Much, and What Kind
Pellets are not bad. They are simply misunderstood as a primary food source when they are a supplement. The correct quantity for an adult rabbit is approximately one eighth to one quarter cup of high-quality pellets per five pounds of body weight, per day. A five-pound rabbit gets a quarter cup at most. A ten-pound rabbit gets half a cup, maximum.
Select plain timothy-based pellets with a high fiber content, at least 18 percent by weight. Avoid mixes that include colorful pieces, dried fruit, seeds, or nuts. Those additions are marketed as exciting variety for the rabbit, but rabbits will selectively eat the high-sugar, high-fat pieces and ignore the nutritionally appropriate pellets, which defeats the purpose of the supplement and creates an unbalanced diet.
Vegetables: What Works and What to Avoid
Leafy greens are the appropriate vegetable component of a rabbit's diet. VCA Animal Hospitals recommends one to two packed cups of mixed leafy greens daily per five pounds of bodyweight. Good options include romaine lettuce, bok choy, mustard greens, cilantro, parsley, basil, and arugula. These provide water content, vitamins, and variety without disrupting the digestive balance that hay maintains.
Iceberg lettuce contains too little nutritional value and too much water and should be avoided. Spinach, beet greens, and Swiss chard are high in oxalates and should be used only occasionally in small quantities. Carrots are high in sugar and should be treated as an occasional reward, not a daily vegetable. Fruits should be limited to one to two tablespoons per week for a five-pound rabbit. Never feed: cookies, crackers, chips, bread, pasta, nuts, seeds, or any processed food. These can disrupt gut flora, cause diarrhea, and in some cases be fatal.
Sources
- VCA Animal Hospitals — Feeding Your Rabbit — hay requirements, pellet quantities, vegetable lists, foods to avoid
- ASPCA — Rabbit Care — foundational diet recommendations and nutrition overview
- RSPCA — What to Feed Your Rabbit — hay as dietary base; fiber and dental health relationship; alfalfa cautions
- VCA Animal Hospitals — GI Problems in Rabbits — GI stasis, low-fiber diet risks, digestive health
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