Mine has always been a brand called Pro-Pet. It originally went under the wierd name of Big Red, before being bought up by Carnation. Why Pro-Pet? Highest protein/fat puppy/performance dog food on the market at about 1/2 the price of the name brands. Ingredients were of the equivalent order as the name brands.

A lot of discussion occurs per dog food vs "natural" vs "raw" foods when the issue of health arises. Most of the time diet is irrelevant in health except in regards to protein and fat ratios.

Although some of the by-products in dog food may sound less than appetizing to us as humans, as long as the dog thrives on it, can it be so bad?