My cat recently was diagnosed with arthritis and this was recommended by the vet. I wouldn't say my cat loves it but he eats it with only slight hesitation when we put it on his food. (My other cat, without arthritis, has no problems with it, of course). He has not vomited because of it but I would agree with the person complaining about the squirt bottle. Mine too, leaked all over the side, making a big sticky mess. Besides a poor package design, the supplement has been good.