I fed the dog chews that are labeled, Twists Sticks with Sweet Potatoe & Fish Oil, to my dogs. They all got diahrea so bad , they were bleeding intestinally. So Far they are ok from some intestinal antibiotic...but this is a very very dangerous product. it is pork rind from china !!!! pork no less !! unfortunate i didnt check this out befor i bought it..the fact is that its from china...that is the scary part. i saw the pictures regarding the chicken jerky treats made in china..and the ill effects it has had, yet costco continues to sell it !!! very concerned...