Wolfberries, also known as goji berries, have been used as a medicinal food in Asia for centuries. The bright red berries are available either dried or juiced from some health food stores and contain amino acids, polysaccharides, anti-oxidant carotenoids, anti-inflammatory compounds, trace minerals and high levels of vitamin C. Studies indicate they amy boost immunity, inhibit cancer, reduce inflammation and help prevent vision loss. Choose goji juice made from at least 90 percent fresh berries - dried wolfberries may not have the same levels of active ingredients.