I have had 12 cats and several were very feral but I was able to put Black-Walnut and Wormwood into the food for every single one. Not one noticed or refused the food. The dose is very small and as my cats eat solely meat, no kibble or dry, they eat enough to easily mask the scent or taste. Not sure why any other cat would have trouble with those things in their wet food unless they are eating a tiny amount. My cats also don't drink much water since their meat provides a lot of hydration so I have added Colloidal Silver to the food as well. We also add probiotocs and for some added coconut oil, no issues, all food eaten.