Our dogs are domestic and not living in the wild so they do not have the survival needs that wild dogs would. They do not need to reproduce quickly to ensure survival so they don't need the high levels of protein that wild dogs do. I don't know if it's harmful but as domestic dogs, their bodies wouldn't process the excess protein and would overexert.the.kidneys as protein metabolism creates various waste materials that are processed in the kidneys. Protein.also dehydrates thebody so water is essential. This is.only my.amateur.theory based on what I've read. I would think that.dogs who are involved in hunting, or sports would require a higher level of protein. And by protein I mean animal protein.
Give a dog food and make him prosperous, he will not bite you. That is the principal difference between a dog and man. (Mark Twain)