My cats poop absolutely reeks. It didn't used to, but he has tons of allergies and stuff and was just horrible sick for the longest time until I found 1 food that works. I'm talking like eve hydrolyzed foods didn't help. But I tried the Instinct Limited Ingredient Rabbit food its made from Raw Rabbit, Tapioca, and something else I can't remember. It makes his poop smell so bad it could clear out an entire house, but its worth it since he isn't sick anymore. This dude can't eat any protien I've found so far except rabbit. Chicken, Beef, Lamb, Fish, etc all make him sick. He vomits, gets constipated, his skin itches like crazy and he starts to get dandruff and tear at his face til he bleeds, he gets ear infections, etc.

So honestly if the stink is the only downside to this food then I'm just gonna let it stink.