I used to do a shot of it every day, but didn't really notice any difference. I don't think I took it long enough; only for a month or so.
It became too much of a hassle trying to get the wheatgrass from my local health store. They didn't make a profit on it, and they told me people would order grass and then not pick it up (so the store was stuck with it). I would still be taking it if I could get the wheatgrass somewhere! I tried growing my own too, but it didn't work out well....
Sinthia