A: Thank you for reaching out! All of our foods 100% complete and nutrition. Please feel free to reach out to our Pet Parent Partners. We'd be happy to discuss our recipes and help you find the best food for your pup! You can reach out to us on our website at https://www.iams.com/contact-us.

A: I cannot address weight gain. I can tell you this food eradicated my dog's GI tract issues and severe flatulence. He no longer has loose stools or gas. I had put him on a probiotic, which did not work very well. On this food, he became noticeably more energetic and playful. He is not fat, but he is not thin on this food--he is a lean machine. My friend (an MD) who works at a dog rescue said this food was identical to a pharmacy grade food which cost 3x as much, and they feed it to ill and undernourished dogs to help save them. It works well for these purposes. Try it for at least two weeks and see how your pitbull does.