Yeah, the whole food pyramid is various industries competing against each other. The grains recommendation is even nuttier; you're supposed to have a giant pile of pasta and maybe a veggie or two.

Michelle Obama took a stab at updating it (https://en.wikipedia.org/wiki/MyPlate) with quite a bit of wailing and gnashing of teeth from industry and right-wing groups (https://www.politico.com/agenda/story/2016/03/michelle-obama...).