I heared that better not to mix vegies and fruit juices.. with an exeption (poss) carrot and apples... The ones who cares about food or juice combaning (I am not talking about taste now, I am talking about how it is for a body.. chemistry of it for our bodies).. I read that melon or water melon (juice) should not be combined or eaten with any other fruits or vegies... tomatoes better not to eat (drink) with tomaties... sweets fruits shouldnt be combines with sour ones.. just sweet with sweet or sweet with semi-sweet (or semi-sour).. and sour fruits r combineable with semi-sour... It is not all about taste.. it sh be also something about goodness for body.. and if u decided to help body with getting rid of toxins then, from my point of view we also need to think about combining of diff kind of juices (max 3 type all together r recomended).. It is my oppinion and the info which was obtained from books (Bragg, Shelton, and some other gurus in this field).
Ps: I am on a day 6 of juice fasting..:)