How Much Should a Rabbit Eat? Portion Guide by Size and Life Stage

Rabbits are constant grazers, so the question is not only how much they eat, but what makes up the diet. For most adult rabbits, the bulk of daily intake should be unlimited grass hay such as timothy, orchard, or brome. Hay supports normal gut movement, helps wear down continuously growing teeth, and lowers the risk of obesity and soft stool compared with overfeeding pellets.

Pellets are useful, but they are the smaller part of the plan for most adults. Current veterinary guidance commonly recommends about 1/8 to 1/4 cup of timothy-based pellets per 5 pounds of body weight daily for adult pet rabbits not intended for breeding. Fresh leafy greens are usually added every day in modest portions, while fruit and high-carbohydrate vegetables are better treated as occasional extras rather than staples.

Life stage matters. Young, growing rabbits under about 7 to 8 months often do well with free-choice alfalfa hay and alfalfa-based pellets because growth increases protein and calcium needs. As growth slows, many rabbits transition gradually to adult grass hay and measured adult pellets. Pregnant, nursing, underweight, or medically complex rabbits may need a different plan, so portion changes should go through your vet.

A healthy rabbit should have fresh water available at all times and should be eating, pooping, and acting normally every day. If appetite drops even for part of a day, that is more concerning in rabbits than many pet parents realize. Their digestive system depends on steady fiber intake, so reduced eating can turn into a serious problem quickly.

For adult rabbits, a practical starting point is: unlimited grass hay, 1/8 to 1/4 cup pellets per 5 pounds of body weight daily, and a small daily serving of leafy greens. Some veterinary sources describe greens as roughly 1 tablespoon per 2 pounds of body weight, while others use larger cup-based estimates. In real life, your vet may tailor the amount based on your rabbit’s stool quality, weight trend, and how much hay they actually eat.

Here is a simple adult guide many pet parents can use while checking in with their vet: rabbits under 3 pounds often do well with about 1/8 cup pellets daily; rabbits around 4 to 6 pounds often land near 1/8 to 1/4 cup daily; and larger rabbits over 8 pounds may need 1/4 cup or a bit more, depending on body condition and activity. Hay should stay available at all times, and many rabbits will eat a pile at least as large as their body each day.

For young rabbits under 7 months, portions are different. They are commonly fed free-choice alfalfa hay and alfalfa pellets, with vegetables introduced gradually and one at a time. Around 7 months of age, many rabbits begin a slow transition to adult grass hay and measured adult pellets. Sudden diet changes can upset the gut, so any switch should happen over days to weeks.

Treats should stay small. Fruit is often limited to about 1 to 2 tablespoons per 5 pounds once or twice weekly, and carrots are better as occasional treats than daily vegetables. Avoid cookies, bread, seeds, nuts, cereal, and sugary snack mixes marketed for small pets. If your rabbit is overweight, has soft stool, leaves cecotropes behind, or ignores hay in favor of pellets, ask your vet whether the pellet portion should be reduced.

The biggest red flags are eating less, refusing food, or making fewer fecal pellets. In rabbits, that can point to GI slowdown, pain, dental disease, dehydration, or another underlying illness. Other warning signs include a hunched posture, tooth grinding, bloating, diarrhea, soft stool stuck to the rear end, cold ears, or a rabbit that seems quieter than usual.

Overfeeding pellets and treats can also show up in less dramatic ways. Your rabbit may gain weight, develop a large dewlap or fat pads, leave uneaten cecotropes, or produce mushy stool. Some rabbits become selective eaters and wait for pellets instead of eating hay, which can set the stage for dental wear problems and digestive trouble over time.

See your vet immediately if your rabbit stops eating, stops pooping, seems painful, has a swollen belly, or becomes weak or limp. GI stasis is a medical emergency in rabbits. Even if the problem started after a diet change or too many treats, your rabbit still needs prompt veterinary guidance rather than home treatment alone.

If the issue is milder, such as gradual weight gain or frequent soft stool, keep a written log of hay type, pellet brand, exact daily portions, greens, treats, and stool changes. That information helps your vet decide whether the problem is portion size, food choice, dental disease, stress, or another medical condition.

If your rabbit seems hungry all the time, the safest way to add volume is usually more appropriate hay, not more pellets. Offer fresh grass hay in several spots, stuff it into cardboard tubes or hay feeders, and replace stale hay often. Many rabbits eat more when hay smells fresh and is easy to reach.

For variety, choose leafy greens and lower-sugar vegetables instead of frequent fruit treats. Good options often include romaine, cilantro, parsley, basil, arugula, bok choy, green leaf lettuce, bell pepper, zucchini, cucumber, and carrot tops. Introduce new foods slowly and one at a time so you can watch for soft stool or reduced appetite.

If you want a treat, think small and fiber-forward. A bite of berry, apple, or pear can work for many rabbits, but it should stay occasional. Commercial hay-based rabbit treats may be a better fit than yogurt drops, seed sticks, or colorful snack mixes. Always check labels and skip products with added sugar, nuts, seeds, or dried corn.

When portions are hard to judge, ask your vet for a rabbit-specific feeding plan based on current weight, ideal weight, age, and body condition score. That is especially helpful for dwarf breeds, seniors, rabbits with dental disease, and rabbits recovering from illness, because their calorie needs may not match a standard chart.