Could ‘The Martian’s’ scientist survive on potatoes alone?

In the movie “The Martian,” the main character is stranded on Mars and must rely on his own super-science knowledge to survive. Because the crew had packed some potatoes for a Thanksgiving celebration, Watney creates a lab “garden” and is able to survive off the potatoes — after calculating how many calories he would need to survive until a rescue mission could arrive. However, packing some pinto bean seeds would increase his chances of survival, experts say.

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Could ‘The Martian’s’ scientist survive on potatoes alone?

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