This is an extremely well-researched piece on the current state of knowledge about what Goji is and is not.
If you're interested in Goji, you may find this of interest:
Goji berries are an unusually abundant source of essential nutrients, fiber, protein and antioxidant pigments -- a whole food most likely with valuable health-promoting properties.
However, insufficient research criteria are satisfied to prove goji's health effects, and there are no well-designed clinical trials showing intervention by goji consumption against a disease.
Accordingly, health claims for goji berries or any products made from them are not scientifically validated at present. Neither are health claims about goji allowable as statements on food or juice labels or marketing literature for such products.
Despite all the bad publicity, Goji juice is beneficial to health. It must be 100% pure organic Goji juice, not the crap that was on "60 minutes". That was a mixture of "filler" juices. The ORAC value of Goji is outstanding, nearly off the chart.
I've found out that many of the juices are made from reconsituted dried berries... if that is truly the case I would say that its not worth much. Fresh berries are where its at and to grow them yourself. I have just started a thread on growing goji. Save the dried for winter, or perhaps they will freeze well.