Below, see how the logos of 10 major fast-food companies have evolved over time. Burger King is the latest fast-food chain to announce changes to its logo. This was the company's logo in 1969.

Yellow might be less common, but many fast food chains have red in their logo, and it's not entirely clear whether this goes beyond the fact that this particular color is eye-catching.

Policy. Does Fast Food Marketing Make Kids Fat? A new study trumpets a dubious link between obese youngsters and the logos of food companies. Baylen Linnekin | 10.6.2012 8:00 AM ...

Many assume that the McDonald’s logo is simply a massive “M” to represent the name of the fast-food chain. But the famed Golden Arches apparently serve another purpose.

Most of these fast food chains have the same shade of yellow and red in their logos, and marketing experts say there's a very good psychological reason for that. (Images courtesy: Canva) 2 / 5 ...