Elaine C it’s true AAFCO is a baseline. At least it’s a starting point. That’s why you have to read the labels and ask the company what the min & max guaranteed analysis is on a dry matter basis and make sure it’s the right amounts for your dog.
I don’t like or trust Purina the dog food company either as a general rule. I personally wouldn’t feed it, but I know plenty of dogs that do very well on Pro Plan and not as well on the better quality foods. It’s just what works for them right now for whatever reason.
The foods do have a lot of corn and grains, but that’s not necessarily awful. Again, my dogs don’t do well on foods that use a lot of plant-based protein, others seem to have better luck.
As far as I know Purina uses Grade 1 & 2 ingredients which is human grade. And they don’t use feather, hooves, etc as their by-products.
There is certainly much worse choices. If there’s any good about being so big is that they are being watched and they have the money to afford to do feed trials and have excellent facilities.
