I used these products in the past when I had a houseful older cats and had great success. I now have a cat diagnosed with early kidney disorders and the special food gave him diarrhea. The probiotics have done the trick. Although they claim to have no taste or smell, they knew they were there. So I learned you have to start these with just a tiny small amount and work up to the recommended amount over the span of about 2-3 weeks. I put it in their wet food daily and just a small amount in the dry.. they seem to know it’s in the dry and if dusted too heavily they won’t eat it.. But this is a great product..everyone’s innerds are healthier and my old boy with the kidney issues is Gaining weight and feeling so much better. This is a great product..and it’s super easy with a tiny measuring scoop. Just dump in a scoop and stir it into the food. Even the kitties that aren’t sick are benefitting. More solid and less stinky poopies... and they all seem to have softer coats and the older one is moving around much better.