It sounds like she hasn't been fed appropriately. Pellets mixed with colorful bits and dried veg/fruit is considered junk food. No wonder she's overweight. She should be on plain pellets but it is typically necessary to transition a rabbit slowly from one type of pellet food to another. You could try to do this since you have her for a month, but only if you think the owner will continue that type of food when they return. You can see a few healthy option choices here:
https://rabbitsindoors.weebly.com/pellet-food.html
She should never get an entire carrot at one time. That's sugar overload and can imbalance the gut and lead to GI stasis. She can have a 1" slice at most per day.
Not sure if you are aware but there is a current outbreak of RHVD2 in the US. This is a highly contagious disease deadly to rabbits. The House Rabbit Society is saying that no pet rabbits should be allowed outside. Unlike Australia and the UK, the vaccine is not readily available in the US. Here is more info on that:
https://rabbitsindoors.weebly.com/rhdv---beware.html
Bookmarks