I've been feeding all of my cats Innova Evo for almost 2 years now and yes it does cause very stinky stools especially if they don't cover them up. Starr is very bad about this so either Storm, Pearl, or I will cover his stools up.

I think it's the high protein content that causes this. Some of my cats will also have stinky breath and my vet said that it's because of their high protein diet. I buy plenty of Oust and spray it when one of them does a stink bomb. It's worth putting up with to have healthier cats.

My Storm is the cat that you were referring to. He had struvite crystals and became blocked 2 times so he had to have the PU surgery. He was on Royal Canin Urinary S/O but he would still sometimes have UTI's. Since both Starr and Pearl need to be on a grain free diet, I switched everyone to Innova Evo.

Both my regular vet and holistic vet have approved this as long as Storm gets plenty of the canned food. I feed him about 2 large spoonfuls of the 95%Chicken & Turkey Innova Evo canned food and I mix it with some water so it's a thick soupy consistency. I give this to him 2 times a day. He's had normal urinalysis tests ever since and no more UTI's. He also seems to have more energy and the most important part is that he loves his food.

My holistic vet said that the grains in cat foods can effect some cats that have urinary tract problems but I'm not sure why. A long time ago I tried feeding Storm the regular Innova dry and canned food which contained rice. He loved it but he ended up getting a UTI so I had to put him back on the Royal Canin Urinary S/O. I guess the rice made all the difference. I hope that your boys will do well on this food. My cats get no more than 1/2 a cup of the dry Innova Evo and Storm only gets about 1/4 cup since he receives 2 feedings of the canned.