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Survive on a single food | CAN IT BE DONE?

In the 2015 sci-fi film The Martian, a marooned astronaut survives on the red planet eating nothing but potatoes. But since there are no real humans on Mars, could a person survive eating nothing but spuds on Earth? The short answer: Unless you're stranded with nothing but taters, it's not a good idea. Learn more: http://pops.ci/OneFood SUBSCRIBE! for more Popular Science on YouTube http://pops.

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