Rabbits are obligate herbivores, meaning they need a 100% plant based diet. This is to keep their gut stimulated, by consuming lots of indigestible fibre such as hay, various grass and wild plants which also naturally wears their ever-growing teeth down.
As with the Victorian idea of keeping bunnies in hutches, commercial rabbit feed was also first designed to fatten them up for human consumption and also for laboratory animals. As such, pellets should be viewed as a supplement, not a main food. We do not recommend the museli type food as it encourages selective feeding and can contain ingredients that maybe harmful to your bunny.
We therefore recommend unlimited amounts of good quality hay and grasses, which should be at least 85% of your bunnies’ diet. Pellets should constitute around 5% of their diet. Some Vegetables can be given daily in small amounts and fruits as a treat.
Healthy Herby offer a great range of excellent quality hay, forage and herbs. They also support rescues throughout the UK so please do check out their products. https://healthyherby.co.uk/collections/healthy-herby-hay-and-straw
A little research around wild plants, forage and vegetables will help to decide how much to give your bunny- some may be high in calcium which can be damaging. https://rabbitwelfare.co.uk/rabbit-care-advice/rabbit-diet/recommended-vegetables-herbs/
N.B this guidance for healthy rabbits- please seek advice from your vet if you have any concerns about your bunnies health.