I have had dobermans all my life. I was feeding my red and tan timberwolf only. he had a weak stomach and it seemed to help. when we started feeding him he was 127 lbs My dog started to vomit and have serious bloody diarrhea issues. I took him to the vett. after many expensive test and too much time. My life long buddy named Reggie died. he weighed 60lbs the day he died. I TELL EVERYONE DO NOT FEED YOUR DOG THIS FOOD!! My dog had no problems other than a sensitive stomach before feeding him timberwolf. I believe that the timberwolf company is responsable for my dogs death. I have tried calling the company, emailing faxing. im taking it to my lawyer now. were working on a case. Please IF YOU LOVE YOU DOG DONT FEED HIM TIMBERWOLF!!!!!!!!!!