. "Common Feeding Boo-boo's, Part 2 Boo -boo #2 -- Heavily fortified sweet feeds!Most areas have generic or name brand sweet feeds with added A, D, E, and inorganic minerals. (Review your Minerals: Right on Target to help you remember that the oxide, carbonate and sulfate forms of minerals are inorganic i.e. relataively indigestible.) These inorganic minerals can cost the body more in energy to elimi" . . . . .