To be clear, we aren't talking about fibrous cereals, such as bran or whole wheat-based grains. We are talking about the really sugary stuff. You know the ones, the good ones. Bright colors, super sweet taste, and totally unnatural in appearance. The types of cereals you would beg your parents to buy for you before they settled on healthy and boring old bran.
It might be of some comfort to learn that your parents did the right thing. Starting your day off with a bowl of sugar is a terrible idea. On top of that, some American cereals contain butylated hydroxytoluene or butylated hydroxyanisole, which are both recognized as carcinogens that increase the risk of cancer. Countries in Europe, as well as Australia and New Zealand have banned both of these, which gives you an idea of how unhealthy they really are.