Hm, Wikipedia defines it so: > Breakfast cereal is a breakfast food made from processed cereal grains. If your cereal mix contains only the grains/seeds and n

Hm, Wikipedia defines it so: > Breakfast cereal is a breakfast food made from processed cereal grains. If your cereal mix contains only the grains/seeds and not loads of sugar it's almost impossible for it to be nutrionally bad. Consumer's choice which cereal mix they buy.