How to easily get safe food and water when it becomes scarce

http://www.wheatgrasskits.com/graphics/hurricane.jpg

This is a manual tool for extracting the liquid from wheat grass. But they also work on leaves, herbs, and anything the same texture consistency as grass. Just make sure to juice plants that herbivores can eat safely.

The fresh juice is highly nutritious, and the liquid inside is also structured for compatibility with people. Grasses however areat the best source of nutrition to my knowledge... because they contain complete sets of amino acids, b vitamins, and much more.

I dont know if a person could live on these juices for their entire lives... but I know they could go for quite awhile on plant juices.

Aswell it doesnt require any power which is always a good thing.

any other ideas... I also know that dew collects in the early morning on the grasses... so taking a cloth and letting it soak the dew by rubbing it on the grasses... then ringing the cloth into your mouth can also be a source of clean water. Insects can also help... eating ants and such.