Can a human live on just one type of food alone? While the lack of variety may bore you quickly, in times of need, a person can live off one type of food for several weeks. In the case of some Inuits, they've survived long periods entirely on meat. Makes you rethink that Paleo diet, doesn't it?But what about the simple, but amazing potato? They are dirt cheap (no pun intended), readily available and easy to grow. Plus there's so much you can with them: Mash 'em, boil 'em, stick 'em in a stew.If you've seen Matt Damon in The Martian, you got to see him grow and live off his potatoes which he just microwaved. But this made many people wonder: Is this really possible? One man set out to see.