Was a little bit skeptical about buying the product for the price but I am truly blessed at how fast it actually works as I take care of rescues and within a week I got excellent results. Taking care of a Dane that was skin and bones and is now got visible wait on him and you can no longer see his rib cage this product is totally awesome.My dog is an American Bully. He’s currently 65lbs lean but muscular. I gave this food a try in combination with his normal kibble Victor. My dog is a service animal as well. I’m giving this a 2 star as I definitely noticed a bulk in muscle and mass and it actually didn’t cause any gastrointestinal issues like diarrhea or over urination. BUT this made my dog a little aggressive/dominant and wary of random strangers (some men, few women, and randomly towards kids). This was NOTHING like his behavior before Bully Max. He had no issues was people and was very friendly with all people and animals. We finally finished all of these products and I’m disappointed in his personality change. As a service animal I can’t have him growling at strangers for looking at him. He became resource aggressive with the other dogs in the house and god forbid there’s a tug toy at the dog park. He never marked or mounted other dogs until he started this food. I won’t be ordering this again. I guess this food would be good for people who don’t care how their dogs interact with the outside world, but this was not a good outcome and I pray that with me switching to a raw/fresh food diet, he will go back to his friendly, social self.My dogs gut is beyond sensitive. No matter how much he likes it at first by the end of the bag he's Not eating or looking at it . His overall appearance looks like he's hungover or something. This is the only line of dog food that he will eat with the same enthusiasm no matter what. Dogs get energy from what? Outstanding productGreat product for our four legged family members, the food, vitamin supplements all in one order makes for easy feeding regimen with quality product. I would make one SUGGESTION... Other FLAVORS besides chicken.I would buy again and recommend this sellerVery good but bully max have to explain customers on packaging who to use or mix power to food other than that problem very good productMy pitbulls love this product and it’s very simple to use. Great quality and I started seeing results after 33days of being on this product I have bought this twice and I’m waiting for them to restock in order to buy more.That of dog food was believed to enable that of one(s) dog that of regard(s) of nutrition.