Cultivated blackberries are notable for their significant contents of dietary fiber, vitamin C, and vitamin K (table).[10] A 100 gram serving of raw blackberries supplies 43 calories and 5 grams of dietary fiber or 25% of the recommended Daily Value (DV) (table).[10] In 100 grams, vitamin C and vitamin K contents are 25% and 19% DV, respectively, while other essential nutrients are low in content (table).