A Coke and a pickled egg isn't exactly healthy.

The founder said in his first blog post about the subject that, prior to pursuing his Soylent idea, he was eating a lot of fast food and frozen burritos.

Of course, if you're just looking for a cheap, quick hunger fix, those things will work. As will a candy bar, bag of chips, etc. But if you're trying to eat healthy, it's kinda tough to find something that's also quick, convenient, and filling. Soylent solves that problem.