[EinNYC]

Those particular pet foods are among the junkiest on the market. They are FULL of grains like corn, rice bran, corn bran, hulls, and wheat mill run, which have no nutritional significance for obligate carnivores like cats and dogs. Ingredients like "meat by product meal" or "bone meal" are euphemisms for meat-stuff rendered from sick cows, downers, dead zoo animals, euthanized pets (including the poison to kill them), and roadkill. Artificial preservatives like BHT, BHA, and sodium nitrite can be dangerous for pets – they have been linked to increased risk for cancer and other health problems. These kinds of brands have that stuff in them. Did you know that "protein", according to gubmint standards, can include very low quality proteins like ground lungs, hooves, noses, and other noisome disgusting stuff. Premium brands like Wellness specify that they use human grade muscle meat for proteins. You get what you pay for, and you see the difference in your pet and how much they leave on the lawn or litter box.

[nomorelurker]

Your dog in the wild would eat the stomach first then the lungs, nose, brain before getting the muscle tissue. After that marrow, hide, hooves. You as a human would go for meat (muscle) first then the rest not that different from the dog. This will change with whatever predators or scavengers are around. ooves.

[Redcitizen]

“Premium brands like Wellness specify that they use human grade muscle meat for proteins. “

Sounds like Soylent Green to me.