Nanzao (black dates) has been classified as a tribute during the Qianlong era. Nanzao is the best date in Jiangnan, composition is rich, containing essential amino acids and inorganic salts.
Medicine commonly used Chinese-dates such as black dates, nanzao, red dates, honey dates, etc., of which the black date and nanzao have more strong effects for nourishing blood and invigorating spleen-stomach. The red date is warm in property, nourishing force thinner. And the honey date has nice taste and better effect for nourishing and detoxification.