I agree with u.
A lot of ppl have this misconception about high protein diet in dog, told by some vet and some pet shop, which is very misleading. Protein content, as with carb content and fat content, it all depends on quantity u feed, quality of the ingredient, and source of those nutrient. For example, a gram of egg protein and a gram of soy protein give different effect to our dogs. Animal protein, which appear to be more digestible compare to plant protein for dog, should be the main source of protein in dog food. Taking low digestible protein will not only upset the pets stomach, but strained the kidney and liver. That's y people say high protein food is bad. What they actually mean is, high % of low digestible protein is bad.
Another thing is weight gaining and extra energy. Comon', if u think ur dog becoming too big and fat, u are feeding too much! Not every single dog food are the same, and the amount have to be adjusted according to your dog. If they eat more than they need, problem come. This is much a calories problem in stead the protein problem.Control the amount u feed to your pets, this is crucial, and get a high protein food that make with major meat protein, not plant protein. U eat too much, u become too fat. All sort of food. Food with low protein and low meat tend to have more carb. True, your dog won't be that muscular on low protein diet, but with excess feeding, he will grow FAT. This do not only stress the hip, but it make your dog more prone to diabetes, High blood pressure, heart disease and cancer.
My advice is, get the best food that u can afford. Look at the quality of material, % of the meat, and the review other gave, take care also of the frequency of recall of the dog food. For me, orijen is by far one of the best dog food that I can find in the market. Other include farmina N&D, Merrick, and the cheaper one, arcana grain free. Of course, there are others too, but I have yet to review all of them. Hopefully one day I could.