Fatty fast food: For those prices, try eating lobster!

In a recent study, Smart Money compared various fast-food items on the basis of how much they cost for each 100 calories. The study found that the cheapest items usually had the fattiest calories, while the most expensive ones were much healthier. In a particularly surprising twist the falling price of lobster has brought it almost within range of fast food.

On the cheapest end of Smart Money's scale, a 32-ounce coke from Subway delivered the most calories for the cheapest price. In fact, at only 38 cents per 100 calories, it was almost 75% cheaper than the top-ranked item. What's more, with zero calories from fat, it was among the healthier choices, although the absolute lack of nutrition and massive amount of empty calories make it far from an ideal dietary choice.