Yes, they can eat it up to 2-4 times a week!

High in sugar and acidic.
While kumquats are edible for pets, we don't generally recommend them as they can be very acidic but still high in sugar, which may predispose to gastrointestinal upset

Guinea pigs and rabbits should have a variety of at least 5 different types of leafy greens to protect against nutritional excesses and deficiencies. At least 80% of the diet should be a good quality grass or cereal hay.
✔ Validated by Dr. Nicole Su

Dr. Nicole is Upilio's in-house veterinarian and bunny parent. With her oldest rabbit Ella now 10 years of age, she developed a passion for small herbivore nutrition and credits Ella's health to a good diet, as well as plenty of love.