Can Rabbits Eat Tomatoes? UK Vet Guide to Safe Portions & Toxic Parts 2026
⚠️ Yes — but ripe tomato flesh only, in very small amounts, and never the green parts. Ripe tomato flesh is safe for rabbits as a rare occasional treat. However, all green parts of the tomato plant — leaves, stems, unripe fruit and the green calyx (the star-shaped green top) — contain solanine and tomatine, alkaloids that are toxic to rabbits. Tomatoes are not a dietary staple and should be given sparingly.
- Ripe tomato flesh: safe in very small quantities as an occasional treat — confirmed by RSPCA and Blue Cross
- All green parts of the tomato plant (leaves, stems, unripe tomato, green calyx) are toxic to rabbits — contain solanine and tomatine
- Always remove the green calyx (the leafy star on top) before feeding any tomato to a rabbit
- Maximum safe portion: 1–2 cherry tomatoes or a 1cm slice of a standard tomato per week
- A rabbit’s diet should be 80–90% hay — fruit and vegetables are treats, not staples
- High water and sugar content means too much tomato causes loose stools and digestive upset
- Seeds are safe to leave in — no need to deseed before feeding
Are Tomatoes Safe for Rabbits? The Full Picture
Tomatoes sit in a nuanced category for rabbit owners: the fruit itself is safe, but the plant is dangerous. The tomato plant (Solanum lycopersicum) belongs to the nightshade family (Solanaceae) and contains glycoalkaloids — primarily solanine and tomatine — in its leaves, stems and unripe fruit. These compounds are toxic to rabbits and can cause serious gastrointestinal distress, lethargy and in significant doses, more severe neurological effects.
Once a tomato is fully ripe, the tomatine content in the flesh decreases substantially. Ripe red tomato flesh is therefore considered safe for rabbits in small amounts by the RSPCA, PDSA and Blue Cross. The critical rule is that only the ripe red flesh is ever fed — the green calyx must always be removed, even when the rest of the tomato looks fully ripe.
| Part of Tomato Plant | Safe for Rabbits? | Reason |
|---|---|---|
| Ripe red flesh | ✔ Yes — in small amounts | Tomatine levels low in ripe fruit; safe as occasional treat |
| Green calyx (leafy star top) | ✖ No — always remove | Contains concentrated solanine and tomatine — toxic |
| Leaves | ✖ No — toxic | High solanine content — can cause serious illness |
| Stems | ✖ No — toxic | High solanine and tomatine — toxic to rabbits |
| Unripe (green) tomato | ✖ No — toxic | Unripe fruit has significantly higher tomatine levels |
| Seeds | ✔ Yes — safe | Tomato seeds are not toxic to rabbits — no need to remove |
| Cherry tomatoes (ripe) | ✔ Yes — 1–2 per week | Smaller size makes portion control easier |
Why Tomatoes Should Only Ever Be an Occasional Treat
Even the safe part of a tomato — the ripe flesh — should be given very sparingly. This is not because of toxicity in small amounts, but because tomatoes do not suit a rabbit’s nutritional needs when given frequently:
- High water content: Tomatoes are approximately 95% water. Too much contributes to loose stools (caecotropes becoming too soft) and can disrupt the delicate balance of a rabbit’s gut flora.
- Sugar content: At approximately 2.6g of sugar per 100g, tomatoes are not particularly high in sugar compared to other fruits, but regular feeding still adds up — particularly for rabbits prone to dental disease or GI stasis.
- Acidic pH: The moderate acidity of tomatoes can irritate a rabbit’s sensitive digestive system if given too frequently.
The RSPCA and RWAF (Rabbit Welfare Association & Fund) both emphasise that a rabbit’s diet must be based on unlimited high-quality hay (80–90% of total intake), supplemented by fresh leafy greens and a small amount of good-quality pellets. Fruit — including tomato — is a treat to be given in tiny quantities and not more than a few times per week at most.
| Food Type | Proportion of Rabbit’s Diet | Notes |
|---|---|---|
| Hay (timothy, meadow, orchard grass) | 80–90% | Unlimited access at all times — essential for gut motility and dental wear |
| Fresh leafy greens | 10–15% | Kale, rocket, parsley, basil, dandelion leaves — variety daily |
| Pellets (good quality, timothy-based) | ~5% | Approximately 1 tablespoon per kg of body weight per day |
| Fruit and treats (including tomato) | Less than 5% | Occasional only — 1–2 cherry tomatoes or equivalent maximum per week |
Source: RSPCA rabbit feeding guidance; RWAF dietary recommendations.
How to Feed Tomato to a Rabbit Safely
Preparation takes only a moment but is essential. Always wash the tomato thoroughly to remove pesticide residue. Remove the entire green calyx — pull or cut off the star-shaped green top completely and discard it. Slice the ripe red flesh into small, manageable pieces. One or two cherry tomatoes per week, or a 1cm cube of standard tomato, is a reasonable treat frequency for an adult rabbit. Do not feed tomato to young rabbits under 12 weeks old whose digestive systems are not yet fully developed.
If your rabbit has accessed tomato plant leaves or stems — for instance in a garden where tomatoes are growing — contact your vet promptly. Symptoms of solanine poisoning in rabbits include lethargy, loss of appetite, drooling, digestive upset and in severe cases, tremors. Do not wait for symptoms to worsen before seeking advice.
Frequently Asked Questions: Rabbits and Tomatoes UK
Yes — ripe cherry tomatoes (with the green calyx removed) are one of the more practical ways to feed tomato to a rabbit because the small size makes portion control easier. Limit to 1–2 cherry tomatoes per week as part of a varied fruit treat rotation.
No. Tomato leaves contain high concentrations of solanine and tomatine and are toxic to rabbits. If you grow tomatoes, ensure your rabbit cannot access the plant. Even a small amount of tomato leaf can cause serious gastrointestinal distress.
A small accidental piece of ripe tomato flesh is unlikely to cause harm. If your rabbit accidentally ate green parts of the plant (leaves, stems or unripe tomato), contact your vet. Watch for lethargy, loss of appetite, soft stools, drooling or unusual behaviour and report any of these promptly.
No. Rabbits under 12 weeks old should not be given any fruit or vegetables beyond their primary diet of mother’s milk and hay. Their digestive systems are not yet developed enough to process the water and sugar content of fruit without risk of serious digestive upset.
Ripe tomato flesh provides modest amounts of vitamin C and lycopene, but rabbits do not require supplementary vitamin C from their diet (unlike guinea pigs) and the amounts in a small treat portion are nutritionally negligible. Tomatoes are better described as a harmless occasional treat than a nutritional benefit. The primary value is enrichment — variety in a rabbit’s diet supports psychological wellbeing as well as physical health.
RSPCA — rabbit diet and feeding guidance (rspca.org.uk). PDSA — rabbit care guide (pdsa.org.uk). Rabbit Welfare Association & Fund — dietary recommendations (rabbitwelfare.co.uk). Blue Cross — what can rabbits eat? (bluecross.org.uk). USDA FoodData Central — tomato nutritional values per 100g.
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