What you find on this page:
No – It is not recommended to give your rabbit lemons.
Why should I not give lemons to my rabbit?

Although lemons are not toxic to a rabbit, it is not recommended to feed them to your rabbit. The high levels of acidity from citric acid can upset their stomach and cause vomiting and or diarrhoea.
FAQs
Can a rabbit eat lemon peel?
No – Lemon peel should not be given to your rabbit as it can result in gastrointestinal blockage.
Can a rabbit eat lemon seeds?
No it is not recommended to give your rabbit lemon seeds as it can be a choking hazard.
