Goji berries have become a common sight on supermarket shelves, and for a good reason. They contain a lot of vitamin C. Native to Tibet and Inner Mongolia, these orange-red tangy berries have been used by Chinese herbalists for centuries to treat visual ailments, poor circulation, and to help boost the immune system. Scientific
research has yet to support such claims, but there's no denying that goji berries are rich in plant-based antioxidants and compounds. Look for goji berries dried whole, and in powders and drinks.