I would say that frozen Crystal Lite ice-pops are DAMN good! Sugar-free jello is really good too for like 30-40 calories but you have to a fucking TON to get full off it. I dont know there needs to be something thats just SOOOO good that everyone loves it and has 0 cal, 0 pro, 0 carb, and 0 fat. Or better yet a lot of protein and nothing else that tastes GREAT!