For decades, many people have wondered what goes on behind the curtains of these patty-prepping assembly lines.

What do they put into burgers that makes them so juicy and irresistibly good?

Read on to find out what exactly goes into your fast food hamburgers.

mcdonalds burger beef

Shutterstock

Then, scroll through the 40 Most Iconic Fast Food Meals of All Time.

Why is it so important for fast food companies to cut antibiotics out of their meat?

But the additives don’t stop at the burgers.

big mac

Courtesy of McDonald’s

Food Coloring

Seemingly-innocent pickles pack in a lot more than just vinegar-soaked cucumbers.

You know the top coating that makes your mani shine?

The Bottom Line

Fast food burgers aren’t the unhealthiest meals on the planet.

burger king fiery bacon whopper on a red background

Burger King

A&W Hamburger

A&W

McDonald’s cheeseburger

McDonald’s

wendy’s storefront

Photo: Deutschlandreform / Shutterstock. Design: Eat This, Not That!