Honestly, I had no idea there was a difference between whole wheat bread and white bread when I finished high school. Our nutrition classes were a joke. We hardly touched on calories. I learned it myself when I started to gain a little weight in college. The information is out there for those who want to do better. There is a minefield of fatlogic to get over though.  I wish better nutrition was taught in schools. I imagine there would be a lot of reeeing from fat parents as a result. I'm all for it.