I finished my month of being gluten-free (well, to be honest, I went 29 days - a grocery issue on the last day caused me to cut it). The very first day that I went back to eating barley, wheat, and rye based products I loaded-up on a hefty bowl of Post's Shredded Wheat; exactly the opposite of what I told myself I'd do.
Sugar, semi-sweet chocolate chips (sugar, chocolate liquor, cocoa butter, soy lecithin, vanilla), cocoa processed with alkali, rice flour, potato starch, corn starch, xanthan gum, salt. Contains soy ingredients.
Dawson tested a strand of my hair: 69 percent of the carbon came from corn. This may seem high, but it is typical for Americans.