From a Wall Street Journal story by Andrea Petersen headlined “The American Diet Has a Sandwich Problem”:

The humble sandwich is the saboteur of the American diet.

Most Americans consume too much sodium, sugar and saturated fat, according to government survey data. Sandwiches—which almost half of Americans eat on any given day—are a primary culprit. Nutritionists, doctors and public-health officials are trying to nudge people to make their sandwiches healthier, believing that even simple changes can improve health.