# Is there one food you could live on?

**URL:** <https://boards.straightdope.com/t/is-there-one-food-you-could-live-on/526967>\
**Category:** Factual Questions\
**Created:** [January 30, 2010, 12:15am UTC](https://boards.straightdope.com/t/is-there-one-food-you-could-live-on/526967 "2010-01-30T00:15:31Z")\
**Posts on this page:** 2\
**Page:** 4

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**Author:** ![ElevatedSteve](https://avatars.discourse-cdn.com/v4/letter/e/3da27b/32.png) [@ElevatedSteve](https://boards.straightdope.com/u/ElevatedSteve)\
**Post date:** [February 9, 2010, 6:00pm UTC](https://boards.straightdope.com/t/is-there-one-food-you-could-live-on/526967/61 "2010-02-09T18:00:55Z")

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No plant food has vitamin B12, and when you run out of it, it can be pretty bad for you. I believe that you can go for a long time without eating it, but if your single food is not animal or yeast derived, it won’t last for the rest of a normal lifetime.

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**Author:** ![dragoncat](https://avatars.discourse-cdn.com/v4/letter/d/6a8cbe/32.png) [@dragoncat](https://boards.straightdope.com/u/dragoncat)\
**Post date:** [February 10, 2010, 1:05am UTC](https://boards.straightdope.com/t/is-there-one-food-you-could-live-on/526967/62 "2010-02-10T01:05:15Z")

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Soybeans. But… only soybeans for the rest of my life? :eek: Do I have to???

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