What is the most size-efficient emergency food? That is, the smallest amount that will last you the longest.

Posted by tonystark29@reddit | preppers | View on Reddit | 8 comments

I guess this might be the same thing as saying the smallest serving with the most calories. In Lord of the Rings, there is a fictional bread that one bite would be enough to fill your stomach. Obviously, I know this is impossible, but what is the closest thing in real life?

Thanks!