Googling "juice plus" returns quite a number of hits, including this

clinical summary
an extract made of dried fruit and vegetable powders. Was created by a naturopath, Dr. Humbart "smokey" santillo. Based on the creator's notion that the nutritional benefits of fresh fruits and vegetables can be obtained by in a capsule of dried extracts, the supplement is touted as an easy way to help you “feel better”, “look better”, “sleep better”, “get tired less easily”, and “shed a few pounds”. A few small-scale studies have shown that supplementation may increase serum antioxidants (2) (5) as well as protect lymphocytes in the elderly (4). While it is true that nutritional supplementation is important in maintaining health in many segments of the population, particularly the elderly, none of the scientific studies undertaken have sought to prove that is more effective or more bioavailable than other supplements. In addition, no studies exist to compare the physiologic effects of supplementation and eating whole fresh fruits and vegetables. Is distributed through a multi-tiered marketing scheme with exaggerated value and cost. But I don’t think it’s sort a new product as such. In fact, companies change the brand name of the pruduct without significant product improvement. Interestingly, a book has been published on the subject. You may have a look at

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