These tibetan goji berries are a very rich source of vitamin C, having 500 times more vitamin C per ounce than oranges. They are also a superb source of vitamin A, more beta carotene than carrots. They have vitamins B1, B2, B6, and E and are becoming a famous antioxidant. They also are a rich source of both selenium and germanium. The goji berries have 18 amino acids (higher than bee pollen) and 21 trace minerals, linoleic acid and other beneficial food co-factors. Tibetan Goji Berries are a true "super" raw food of the highest type. It takes approximately 3 kilos (6.6 lbs) of fresh berries to make 1/2 kilo (18 oz) of dryed. That's a lot of berries.