Red and Yellow Make People Hungry
According to research into color psychology, the combination of the colors red and yellow make people hungry.
Which explains this:
And this...

I'm not even sorry.
Full disclosure: though I altered the execution a bit, I basically stole this content from Being Libertarian.
Brings up an interesting thought - do the colors red and yellow make us hungry as a result of classical conditioning ( think Pavlov’s dog drooling at the sound of a bell), or is it some other psychological phenomena? It’s kinda spooky to think it could even be classical conditioning that makes us hungry at the sight of those colors.
Also Spain and Liberal Socialism.
I don't know about hungry, but I definitely need another cup of coffee - LOL
Too funny... I literally want a cheeseburger right now! Haha!
No burger for you!

One of my favorite memes.... and by favorite, I mean, better than gulag.
Only slightly.
Certainly @setlinson, that's what the color study is usually for product marketing is about, in fact. A label known by many that uses this strategy is the Mc Donalds, burger king franchise and another restaurant are imited, too