Why Rabbit Nutrition Is So Often Wrong
Rabbits are among the most commonly kept pets in Europe, yet they are also among the most frequently misfed. Muesli-style mixes, small portions of pellets, and the odd piece of fruit may look appealing to an owner, but they bear little resemblance to what a rabbit's digestive system actually needs. The Rabbit Welfare Association and Fund (RWAF), the leading rabbit welfare organisation in the UK, has long campaigned to change the way we feed pet rabbits — and the science is firmly on their side.
Getting your rabbit's diet right is not merely a matter of nutrition. It directly affects their dental health, their gut function, and ultimately their lifespan. Dental disease is one of the leading causes of suffering and death in pet rabbits, and diet is the primary driver.
The Rabbit Diet Pyramid
The RWAF uses a simple pyramid model to illustrate correct rabbit nutrition. From the bottom up — from most important to least — it looks like this: hay, fresh leafy greens, and a very small amount of pellets.
Hay: The Foundation (85-90% of the Diet)
Unlimited, fresh hay should make up the vast majority of everything your rabbit eats — roughly 85 to 90% of their total diet. This is not optional, and it cannot be substituted. Hay performs two critical functions that nothing else can replicate:
- It keeps the gut moving. Rabbits have a sensitive and complex digestive system that requires a near-constant flow of fibre to function correctly. Without it, gut motility slows, leading to gastrointestinal stasis — a life-threatening emergency.
- It wears down the teeth. Rabbits have continuously growing teeth that must be ground down through the sideways chewing motion that hay requires. Without sufficient hay, teeth overgrow, misalign, and cause abscesses, pain, and the inability to eat — one of the most serious and costly welfare crises in pet rabbits.
Timothy hay and meadow hay are the most appropriate choices for adult rabbits. Alfalfa hay is higher in calcium and protein and is only suitable for young rabbits under five months. Choose dust-extracted hay where possible to reduce the risk of respiratory problems, particularly for house rabbits. Brands such as Burgess Excel Feeding Hay and Oxbow Timothy Hay are widely available across Europe.
Fresh Leafy Greens: A Daily Supplement (Around 10%)
A generous portion of fresh leafy greens each day provides important nutrients and variety. Safe options include:
- Dark leafy greens such as romaine lettuce, rocket, and watercress
- Fresh herbs including flat-leaf parsley, basil, coriander, and dill
- Dandelion leaves (excellent and usually free if you have a garden)
- Kale and spring greens in moderation — these are nutritious but high in calcium, so should not be the only green offered
- Bok choy, fennel fronds, and radish tops
Introduce new greens gradually to avoid digestive upset, and wash everything thoroughly. Variety is beneficial both nutritionally and for enrichment.
Pellets: A Small Supplement Only (5% or Less)
A small amount of good-quality pellets — no more than one level egg-cup per kilogram of body weight per day — can be a useful nutritional supplement. The key word is supplement. Pellets should never form the bulk of the diet. Choose plain, uniform pellets over muesli mixes, and look for brands with a high fibre content and no added sugar. Burgess Excel and Science Selective are among the well-regarded options available in the UK and much of Europe.
What Not to Feed Your Rabbit
Several commonly available foods are harmful to rabbits, and some are dangerous enough to be fatal:
- Muesli-style mixes — the RWAF has campaigned against these for years. Rabbits selectively eat the sugary, starchy pieces and leave the healthier elements, leading to nutritional imbalance, obesity, and dental disease. No reputable rabbit welfare organisation recommends them.
- Iceberg lettuce — very high water content with little nutritional value; can cause loose droppings
- Onions, garlic, leeks, and chives — toxic to rabbits
- Avocado — toxic
- Rhubarb — toxic
- Chocolate and all processed human foods
- Bread, crackers, biscuits, and cereals
- Fruit — not toxic in tiny amounts, but high sugar content makes it inappropriate as anything more than an occasional treat
Water
Fresh, clean water must be available at all times. While water bottles are commonly sold with rabbit housing, a heavy ceramic bowl is preferable — it allows a more natural drinking position, encourages greater water intake, and is easier to keep clean. If you use a bottle, check the nozzle daily to ensure it is working correctly, as blockages are common.
Cecotropes: Normal and Essential
Many rabbit owners are alarmed the first time they see their rabbit eating droppings directly from their bottom. This behaviour — called cecotrophy — is entirely normal and essential. Cecotropes are a specific type of soft, nutrient-rich dropping produced in the caecum (a part of the large intestine). They are packed with B vitamins, protein, and beneficial bacteria, and rabbits must consume them to maintain their nutritional balance. A rabbit who is overweight, arthritic, or poorly housed may be unable to reach them, which is a serious welfare concern. If you notice soft droppings accumulating around your rabbit rather than being eaten, speak to your vet.
Diet and Dental Health
It bears repeating: rabbit dental disease is overwhelmingly diet-related. A rabbit eating sufficient hay will wear their teeth correctly through the natural grinding action of chewing fibrous material. A rabbit eating mostly pellets or soft food will not. The result, over months and years, is a set of teeth that overgrow in every direction — roots pressing into the jaw, crowns cutting into the tongue and cheeks, and ultimately an animal who is in constant pain and unable to eat properly. Many of these cases require surgical intervention under anaesthesia, carry significant risk, and are entirely preventable. Hay is not optional. It is the foundation of rabbit welfare.