This document lists and describes the 20 worst foods from popular chain restaurants in the United States based on their calorie, fat, carb, and sodium content. The number one worst food is Outback Steakhouse's Aussie Cheese Fries with Ranch Dressing, containing 2,900 calories, 182g of fat, and 240g of carbs from a single appetizer. The second worst is Chili's Awesome Blossom at 2,710 calories and 203g of fat. The third worst is On the Border's Stacked Border Nachos at 2,740 calories and 166g of fat from a single appetizer.