Increased protein has been indeed a staple of dieting. Requires more energy to process into sugars, and is filling. That said you won't starve on rabbits, but

Increased protein has been indeed a staple of dieting. Requires more energy to process into sugars, and is filling. That said you won't starve on rabbits, but you will go low weight, akin to Walford's. Assuming you eat most of the rabbit, not just the meat. That said, make sure you don't have gout or kidney stones or other similar problems, or you will be in a world of hurt.