The goji berry is generally classified among the superfoods. This is not a fixed classification, but superfoods are generally understood as nutritionally rich foods full of vitamins, minerals, fiber, antioxidants and nutrients of plant origin.

Traditional Chinese Medicine
In traditional Chinese medicine, goji berry fruits have been used primarily as a tonic to prolong life. In the Himalayas, Goji has long been called the "fruit of longevity," the "fruit of immortality," or the "secret of beauty and eternal youth."

The highest quality of goji fruits, which are recognized by their typically sweet taste, can be found mainly in China and Mongolia, where they are also widely consumed and are an integral part of the diet. In these areas, the original inhabitants live to an old age and are known to possess amazing energy levels, even in the late years of their lives.

Countless clinical studies have researched the effects of goji on the human body. For example, between 2008 and 2009, a total of five randomized trials were conducted in the United States documenting the effect on the subjective status of patients receiving goji juice versus a placebo control group. Patients were given an amount of juice corresponding to 150 g of fresh fruit for 14 days. The study researched the subjective feeling of well-being in the absence of any side effects.