The ugly truth about surviving on canned food by: Anonymous
That is a good idea, which is why authorities suggest people to have canned food to survive, during a natural disaster. The key word here is SURVIVE. You can survive on canned food for a while,but you can not live on it, because unlike fresh food, canned food is not rich on proteins and minerals that your body needs.
Is like the big fluke in 28 Days Later, when they said they had been surviving on candy and chocolate, your body will stay alive,but that is because it is feeding on your stored fat you can live for a few months on the stuff,but eventually your body will shut down because it is not being fed, it will be starving.
With canned food you will be able to survive for a few months maybe a year,but eventually you will need to get real food for the protein. That includes, fresh food, and meat.