The majority of brands mentioned on this topic are rubbish, anything you find in a major grocery store has about as much nutritional value of saw dust. Not to say dogs can't, or don't do just fine on them. But most store brands like science diet, iams, pureina and so forth are nothing but fillers. And is the equivalent to eating a big mac you're entire life! Two things you should know. When looking at an ingredients list the first 3 should have "named meat" such as chicken, lamb, bison, beef..as long as its actually named, and isn't anything like "meat by products" when an ingredient says "chicken meal" or lamb meal, anything named with "meal" after it is a great thing! Meat and muscle are mostly water, cooked down the meat is smaller in size, weight and nutritional value, chicken meal for example is just the result of the drying process. A concentration of the meat, resulting in an average 300% increase in nutritional value. So don't be afraid of a named meat product with meal after it. By-products is the word u want to avoid, and salts! There's a website I will post that gives an in depth look at every ingredient and why its used. And why its good or bad. I'll do that later, so keep an eye out for it..
And yes, it is common practice for cheaper brand foods to mix dead animals into there food. When you see an ingredient called "bone and meat meal" in most cases you have no idea where that meat is coming from. And they most often take dead animals from zoo's and pet hospitals and toss them into the mix, bags, flea collars and all! Even the animals that are put to sleep are added, and the chemical used for that does not break down during the cooking process! Scary thought huh? But its true.
As far as food brands go, avoid grocery stores, or any of the big name companies you see on t.v....do your research, and good dog food ratings. You'll learn a ton! And be frightened! But the education is well worth it! Especially when it comes to our loving pets!
My brand choices
Best of the best - Orijen! Absoulty amazing stuff! Super high protein levels, and no fillers! Grain free and filled with veggies! Very expensive though!
Grain free mid range priced - taste of the wild! Grain free and no fillers! All around great product with wonderful ingredients list!
I also put chicken soup in the mid range as well, though its not grain free, its still a great food!
If u must go cheap, then kirkland brand food is alright, not great, but better then any other store brand. But if I read correctly isn't the post topic from someone in Europe?
Anywho, keep reading, and studying and learn all u can!