Mary, I just prefer to feed a meat based protein rather than a plant based protein to cats as that's what they are designed to eat. I don't like the idea of feeding grains to cats. Of course some grain free foods just replace the grain with stuff like potato which isn't much better so I aim for low carb for my little carnivores. I am more forgiving when it comes to treats but I'd still rather avoid grains. Of course my little Jaffacake enjoyed his felix and did eat stuff like that and lived a long, healthy life for the most part (I did switch him over to mostly grain free at one point but then let him have some felix senior and of course renal food towards the end) but I've started Mosi off with grain free from the start and I do think he is more prone to runny poos when he eats stuff with grains in. I want Kito to get off to the same start with good quality, high meat content grain free food. Fortunately the little lad hoovers up just about anything I put in front of him.