I've used the Apple flavored the last two years on a stump and they seem to love it. I believe in the stuff, anytime I am at Wal-Mart or at a outdoor store that has it I buy them out. It can be hard to find due to so many people using it now. As far as benifit for the animal, it provides just as much nutrients as a salt/mineral block. I recommend using it on a stump so that it soaks in and you get more use out of it.