"HUGE" - That's the word to describe the confusion about portion sizes (as well as the portions themselves). One example: A sports arena in the Midwest sells an 8-inch bun piled high with five 1/3-pound beef patties, chili, chips, and cheese that weighs in at 4,800 calories.   As restaurants pump up their serving sizes, we reflexively reset our default for what is normal, according to Brian … [Read more...]