If you live in or near a major city, chances are you’re never more than a few blocks from a fast food restaurant. And while the convenience of these places is undeniable, the quality of their food is often questionable at best. So if you’re looking for the worst of the worst when it comes to fast food, here are a few restaurants you should avoid.

1. McDonald’s

There’s a reason McDonald’s is one of the most popular fast food chains in the world: it’s cheap, it’s fast, and it’s everywhere. But it’s also one of the worst offenders when it comes to unhealthy food. From their greasy burgers to their unhealthy fries, McDonald’s is a veritable minefield of unhealthy options. And while they’ve been trying to clean up their act in recent years with healthier options like salads and wraps, the fact remains that McDonald’s is still one of the unhealthiest places you can eat.

2. Burger King

Burger King is another fast food chain that’s known for its cheap, greasy food. And while they do have some healthier options on their menu, they’re still best avoided if you’re looking to eat healthy. Their burgers are notoriously unhealthy, and their fries are some of the worst in the business. In fact, a large order of Burger King fries contains more than twice the recommended daily amount of sodium. So if you’re looking to avoid fast food that’s bad for your health, Burger King is a place you should definitely steer clear of.

3. Wendy’s

Wendy’s is another popular fast food chain that’s often criticized for the unhealthy nature of its food. Like McDonald’s and Burger King, Wendy’s specializes in burgers and fries, both of which are notoriously unhealthy. In fact, a large order of Wendy’s fries contains nearly three times the recommended daily amount of sodium. And while Wendy’s does offer some healthier options like salads and wraps, the fact remains that their food is generally unhealthy. So if you’re looking to eat healthy, Wendy’s is probably not the best place to do it.

4. Taco Bell

Taco Bell is another fast food chain that’s often criticized for the unhealthy nature of its food. Taco Bell is best known for its tacos and burritos, both of which are typically packed with unhealthy ingredients like fatty meats, cheesy sauces, and refined carbs. And while Taco Bell does offer some healthier options like salads and grilled chicken, the fact remains that their food is generally unhealthy. So if you’re looking to eat healthy, Taco Bell is probably not the best place to do it.

5. KFC

KFC is another fast food chain that’s often criticized for the unhealthy nature of its food. KFC is best known for its fried chicken, which is notoriously unhealthy. In fact, a single order of KFC’s fried chicken contains more than a day’s worth of saturated fat. And while KFC does offer some healthier options like grilled chicken and salads, the fact remains that their food is generally unhealthy. So if you’re looking to eat healthy, KFC is probably not the best place to do it.