According to a new study, Five Guys has the most unhealthy burger in the country, as well as the worst fries while McDonald's and Burger King ranked low.

Several fast food chains, including McDonald's, Bojangles, Burger King, and more, use American cheese or other processed cheese not considered "real cheese" by the FDA.

Some states stand out for their variety, the quality of service and customer satisfaction in these establishments, making them hotspots for dining and beloved national brands. Newsweek has mapped the U.

In the fiercely competitive world of Big Food, a handful of restaurants stand out not just for their popularity, but for their impressive earnings.

Since the 1950s, fast food has become synonymous with quick, convenient meals in the U.S. While the golden age of fast food may be behind us, restaurants like McDonald’s and Wendy’s continue to be immensely popular.

When you go through a fast food drive-thru, you likely have a few expectations. You want your order to come quickly, be accurate, and taste as expected.