The USDA has made a big deal the last couple of years about its “healthy plate” model of good eating, which replaces the old food pyramid, which replaced the four food groups, which replaced… well… I thought a chart might help. Today’s post is a visual history of the USDA’s nutritional advice, showing how food groups and recommended servings have changed over the past century. You may note, first of all, that the government has been telling us to eat more fruits and vegetables since 1916. You may also note that until 1943, sugar was a food group. And you may note still further that despite all this advice, our diets are still crap.