I bought this food for my siberian husky, who had severe diarrhea. The VET had him on so many super expensive foods meant for diarrhea issues and nothing worked! After doing some research on the breed and their requirements for food, PRO PAC matched the diet requirements almost 100%. The food was delivered on a Friday and that same night we put him on the food, the change was practically IMMEDIATE. My puppy is only 5months old, and it was the 1st time that he went to relieve himself and it was 100% normal. Its 2 weeks later and hes finally put on weight and looking like the snow bear he should look like :-) Thank you PRO PAC for this food as i was literally in tears watching my puppy cry just to relieve himself. 1million thumbs up :-)