I was feeding my dog pedigree dry food. He had been eating if for 3-4 years and then started to have seizures. I switched him to an expensive brand I bought at Petco. He still had seizures. This went on for several months and the seizures were getting close enough together the vet was going to put him on anti-seizure meds. He had not wanted to do that earlier because he said once they go on they will always need to take them because if you take them off it can bring on seizures. Anyway, I had moved and there were no Petcos nearby so I picked up a bag of old dog Science Diet when I was at the vet. He stopped having seizures immediately. He's been on that food for almost 7 months and no seizures! I don't know what some of these companies are putting in their food, but it's obviously toxic.

I've heard that some of the raw ingredients (like the glucosamine) sometimes come from China, so even if they state made in the US, it's not always US ingredients.