Entries on pets
Now let's see what ingredients are harmful. The dogs can't digest corn so it should not be a part of the food. Some chemical preservative like butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), propyl gallate, propylene glycol, ethoxyquin and ethoxyquin, for dogs so they must not be a part of the food. There is no need of dyes and sweeteners like corn syrup and sugar in dog food. Similarly beef tallow is less desirable as it is a low quality fat product.