Wheatgrass and barley grass questions

Hi all,

I'm very interested in wheatgrass and barley grass juice. But I'm relatively new to it, and I have some questions. Everybody thanks for your time to answer these questions!!

1. I'm using a powder, of barley green juice. Is there a lot of diffence between powder and fresh juice (I've read that there is little difference, but all that information is from commercial websites). And is there a lot difference between barley and wheatgrass juice?
2. Nutritional value. I've read things like: 1 glass of wheatgrass juice contains 8 times the amount of calcium you'll find in 1 glass of milk. But when I look at the nutritional values, I see different results (true it contains a lot of different vitamins, and other substances, but many of those vitamins and minerals are in little quantities, and far away from the RDI). What is the truth about the nutritional value ?
3. They say the most important element in the juice is the chlorophyll (because it's like hemoglobine), I certainly believe that. But, I was wandering, is it also good to drink blood then? (that contains real hemoglobine and in a very high quantity). Don't worry, I won't drink any blood ;), but I'd like to know how this works.
4. We also have a jar of wheatgrass powder, but that is mixed with Alfalfa powder, I don't know anything about Alfalfa. Is it a good idea to take this mix?
5. I'm from the Netherlands, and when I import the powder from America, it costs a lot(because of the high transport costs). Does anybody have ideas where I can get good organic wheatgrass powder, without high transport costs, so maybe a store in Europe? And I'd would prefer to get 100% real powder, not mixed with anything. Any suggestions will gratefully received.

Well thanks everybody for your time. (now I'll drink a glass of good juice ;) )

With kind regards, Caspar Tweet