The goji berry, also called the wolfberry, is a bright orange-red berry that comes from a shrub that's native to China. In Asia, goji berries have been eaten for generations in the hope of living longer.
Over time, people have used goji berries to try to treat many common health problems like diabetes, high blood pressure, fever, and age-related eye problems. Goji berries are eaten raw, cooked, or dried (like raisins) and are used in herbal teas, juices, wines, and medicines.
Some studies using goji berry juice found possible benefits that included a feeling of well being and calmness, better athletic performance and quality of sleep, and weight loss. But those were preliminary studies that need to be repeated before drawing conclusions. All berries are good for you. It's not clear if goji berries are better than other types of berries, or if goji berry supplements have the same health benefits as the actual berries.