I checked the indoor once and it's 12% fat compared to light which is 8% - It doesn't sound a lot but is 50% more fat. I also read an articlew online recently that said the fat content isn't the only issue as the high carbs from the cereal is a big problem for obese cats too. I will look at the ingredients for neutered and hopefully will be cheaper - Although I would prefer a bargain, kylie's health is the main priority.