I look forward to reading how others answer this question. I just wanted to mention that I've found mixing oranges and carrots is delicious. My husband even drinks it, and he's not into any kind of veggie juice. Try it, and let me know if you like it!
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Well, it all depends on what you read and who you believe. Some say you shouldn't mix them, others say you can. I guess this is something we need to look into better because I have been wondering myself. Just the other day I read that there is no scientific evidence why you can't drink them together. My main juice drink everyday is carrot/celery/green pepper/apple. Sometimes a little piece of ginger if I have some. I guess the best bet is to listen to your body....how do you feel after you drink your juice. I also read that you shouldn't add lemon to veggie juices.....hmmm. It just goes so well with tomato juice!

What about this idea...somewhere recently I read the definition of fruit includes being able to pick it without killing the main plant and something about the seeds...by this definition tomatoes, zucchini, squash, etc would be fruit. If using this idea, many fruits and "vegetables" could be mixed because they are really all fruit.

Anyway, in all of this type of stuff I have been reading lately, I haven't seen anything about not mixing. In fact, in the "Toxic Relief" book, the recipes he gives for juices are often a mix of fruit and veggies. For example, 1/4-1/2 head of cabbage, a handful of collard greens, 2 carrots, 1 apple.

Logically, why should'nt we be able to mix???

The way that I understand it is-- Fruits are great for cleansing, detoxing, and breaking things down. Vegetables are good for streangthening, and building back up a weak system. I think that a lone in the drink is a more powerfuland effective. It will do the job better. Instead of contradictory affects. Some things are totally neutral though. I think Lemons, apples, and carrots are neutral but I could be wrong.
this is just what I picked up from reading so many fasting websites, but I am not an expert. I wish an expert would tell us once and for all.
I try to keep them seperate if it tastes OK.