I think people are a little crazy. Being a student in veterinary assistant/tech, there are people who fail to realize that before there was man the dogs & cats roamed free. They had to search for whatever they could find to survive. Do you ever ask yourself why your pet eats grass in the backyard? Or what about their own poop? What about cats who hunt for rats and mice? Do you really think those rodents are eating the best of foods? You people blame your pets issues on many different food brands. So it has by-product. Big deal! That means whatever was left over gets cooked a certain way so that it DOESN'T harm your pets. It's not the kind of food you feed your pet....it's the chemicals and poisons from insecticides and rodent killer that harm your pets. And the way people breed their animals you also have to consider genetics. It's the people who have screwed up the world and made it more unsafe. And it's people who need to better it NOW before it's too late. There is a reason so many vets and shelters suggest spay/neuter. It's healthier for your pet and cuts back on the population. Look at all the pets in shelters. Everyone wants a kitten or puppy. But what about the older ones? They need homes to. There are hundreds on pets euthanized each week at ONE shelter alone. I know, I've worked at one. I've seen it all. And let me tell you, it's not pretty. In fact, it's heart breaking. Most of the pets we find dead or have to euthanize are due to neglect from people hitting them, starving them, and other types of abuse...as well as hit by car. But you crazy people want to blame everything on the many different dog foods. Why? Because you can't face the reality. You will always have to blame and point fingers at someone else other than yourself!!!