Bests & Worsts Reviews from Amazon

This product, if not purchased on Amazon, is amazing. However, I have done three Amazon orders and fed 2 dogs and EVERY time the dog developed diarrhea and/or vomiting from eating the Amazon purchased food. My dog has used this food daily for over a year (Venison) & it's the only thing that she's tolerated due to allergies. (Has saved us a tremendous amount of $ in the long run with vet bills!) Recently my sons dog also ate the Amazon purchased food & became ill. Subsequently spitting the food out when offered. (My son indicated it appeared lighter than normal as well.) I don't know why the mail ordered products cause illness - perhaps heat during transportation and/or how it's being stored?? Unfortunately I will have to go back to spending a bit more by purchasing the food at the Retail store.