I thought that feeding the cats Purina One which is more nutritious then Friskies and definitely more so than Kit N Kaboodle would slow down their eating and they wouldn't eat as much. Sopdet is now eating too fast and too much at one time, causing her to throw up. Neither cat uses these food puzzle things and the slow eater dishes they walk away from. I am at wits end. First it was Treasure and now it's Sopdet. I don't know what to do now. Suggestions?