Rabbit Health
Can Rabbits Eat Lettuce UK?
Published Last updated 2 min read
Quick answer
Lettuce is not ideal rabbit food. Iceberg lettuce is best avoided — low nutrition and diarrhoea risk. Darker leaves like romaine are acceptable in small amounts alongside better greens. Unlimited hay must always come first. Never let lettuce replace hay — that risks gut stasis.
Key takeaways
- Small amounts of darker lettuce varieties (romaine, lamb's lettuce) are usually fine as part of a varied green portion. Iceberg lettuce is best avoided — it is low in nutrients and can cause diarrhoea.
- Iceberg lettuce is not recommended. It contains mostly water with minimal nutritional value and can cause loose stools in rabbits. It must never replace hay.
- Safe daily greens include coriander, parsley, kale, spinach (in moderation), and romaine lettuce. Introduce new greens gradually. Unlimited hay remains the dietary foundation.
Iceberg vs darker lettuces
| Variety | Recommendation |
|---|---|
| Iceberg | Avoid — mostly water, can cause loose stools |
| Romaine / cos | Acceptable in moderation as part of greens |
| Lamb's lettuce | Fine in small amounts |
| Mixed salad bags | Check for harmful add-ins; wash thoroughly |
The RWAF and PDSA emphasise that hay comprises 85–90% of a healthy rabbit diet. Greens are a supplement, not a staple.
Safe daily greens
Rotate these alongside unlimited hay:
- Coriander and parsley
- Kale and spring greens (in moderation — oxalates)
- Broccoli leaves
- Mint and basil
- Carrot tops (not the root — high sugar)
Introduce one new green at a time over several days to monitor for gut upset.
Greens to avoid
- Iceberg lettuce as a main green
- Potatoes and rhubarb — toxic
- Avocado — toxic
- Onion, garlic, leeks — toxic
- Plants from the garden unless identified as safe — many are poisonous
How much lettuce?
A small handful of mixed greens daily for an average rabbit — with unlimited timothy or meadow hay always available. If your rabbit develops loose droppings after a new green, remove it and revert to hay.
When to call your vet
Contact your vet if your rabbit develops diarrhoea, stops eating, or produces fewer droppings after a diet change. See why is my rabbit not pooping.
Sources & further reading
Facts in this guide are rewritten in plain English from publicly available UK advice. We name the organisation where a specific point comes from their guidance. Links below go to the original pages — use them to read the source material directly.
PETHEALTH+ is independent. These organisations do not sponsor, approve, or partner with this website. Guidance checked against sources listed below (last updated 2026-07-19).
- Why Is My Rabbit Not Pooping UK?
- Rabbit Gut Stasis (Ileus) UK
- Why Is My Rabbit Not Eating?
- Anaemia in Rabbits UK
- Rabbit Care in the UK
- Coccidiosis in Rabbits UK
- E. cuniculi in Rabbits UK
- Rabbit Ear Infections UK
Also see symptoms, symptom checker, and poison guide.
Frequently Asked Questions
- Can rabbits eat lettuce?
- Small amounts of darker lettuce varieties (romaine, lamb's lettuce) are usually fine as part of a varied green portion. Iceberg lettuce is best avoided — it is low in nutrients and can cause diarrhoea.
- Can rabbits eat iceberg lettuce?
- Iceberg lettuce is not recommended. It contains mostly water with minimal nutritional value and can cause loose stools in rabbits. It must never replace hay.
- What greens are best for rabbits?
- Safe daily greens include coriander, parsley, kale, spinach (in moderation), and romaine lettuce. Introduce new greens gradually. Unlimited hay remains the dietary foundation.
- Can lettuce cause gut stasis?
- Lettuce alone does not cause gut stasis, but a diet low in hay and high in watery vegetables contributes to poor gut health. Always prioritise unlimited hay.