new to wheatgrass

What are the gains from drinking wheatgrass juice?Can wild grass(or maybe,tree leaves even)be collected by myself to juice them?What are the mechanics of juicing itself?I am new to it.Are there also bad effects of drinking such stuff?

I did a quick search here (Using the search key up in the green bar above) and came up with this, real quick:

http://www.rawfoodtalk.com/showthrea...ght=wheatgrass

Check this out too:

http://annwigmore.org/

Here's something else:

http://www.soymilkquick.com/benefito...grassjuice.php

Yet some more info:

Wheatgrass, the chief of which is that wheatgrass is a wonderful source of living chlorophyll. Chlorophyll is a pigment in plants that contains magnesium. The juice that is the product of wheatgrass being juiced is extremely full of vitamins and nutrients and while the juice is fresh it is rated as one of the best juices to consume for anyone and everyone.

This grass is wheat in its early stages and once the grass reaches about seven or eight days it is at its optimal stage to be picked and juiced. The juice must be drunk as soon after juicing as possible to ensure that you re
receive the most nutritional rewards from your hard work.

taken from: http://www.roseindia.net/articles-di...e-article/7401

I would be very hesitant to collect grass in the wild. I'd be too afraid of pesticides and gunk.

Most wheat grasses have heavy duty mineralized fertilizer. Most lawn grasses have just N P and K.