For the longest time, people fed their dogs whatever they found at their local grocery store without overthinking it. Hard kibble and canned food were the only real options. At least, until we started to analyze what exactly was in these foods, or should we say, what wasn’t in them.
Most dog foods on the shelves don’t contain much in the way of nutrients. They’re made with fillers, cornmeal and other by-products that you wouldn’t want to eat.