Serious Eats
The 88 Most Bad-for-You Fast Foods
A Calorie Counter pores over the nutritional info of 21 chains, looking for trans-fat transgressions. The top 3: White Castle Onion Rings (30g trans fat), White Castle Fish Nibblers (16g), and KFC's Chicken Pot Pie (14g). Jack in the Box tops the list in frequency; 24 of its items appear on it.