Bests & Worsts Reviews from Amazon

It has made my cats sick. Since I started this food 2 have been throwing up and 1 has diarrhea. I am throwing away this junk and asking for a refund. My cats have eaten it in the past and I believe the formula has either changed as many reviewers are saying or this package from Amazon is old/ or somehow different. My cats are used to eating high proteim food \ grain free as well as rotating to Royal Canin and Science Diet. They are never sick with stomach problems as I am very careful of their diet. As soon as they ate this the stomach issues began.