If you're a vegan, please ignore this post about meat.
Rabbit is higher in protein, lower in fat, and the fat is not marbled thru the meat so really lean. They are little vegans so more of a "clean" meat if raised in the US.
Unfortunately most rabbit meat sold in the US is raised in China where they don't have any clean water or very good feeding methods for anything there. Try to buy local and you're LUCKY if you have a state where farm markets allow farmers to include meat and other items.
Rabbits are much easier on the environment if that is of interest to anyone. (The manure is the best of all species for gardening. Either compost it or apply it in the Fall and let it winter so it can break down before growing new veggies. Said to encourage diabetics to garden so we have an even more healthy diabetic diet.)
Rabbit is VERY HEALTHY (as is goat)! So it's also better for a heart-healthy and low cholesterol diet. I don't know if it's better for a kidney diet. (A lot of diabetics also deal with those issues too.)
Shar