Dogs need a balanced meal like humans. Humans are omnivores. We need a mixture of meats and vegetation. Dogs are carnivores. Their digestive tracts are designed to process meat. While they do need some vegetation to aid in digestion, the type and quality are very important. Fillers like brewer's rice and corn gluten (which are the shells of these grains) are primarily undigestible. Corn and soybeans are vegetative products used in many dog foods that are leading causes of allergies in dogs.
~Flint river research company
this right here shows your statement is incorrect and false... corn isnt digestible at all