Purple cabbage, also known as purple Ying, Zi Cai. Purple cabbage contains protein, fat, sugar, carotene, vitamin B1, vitamin B2, niacin, vitamin C, calcium, iron, phosphorus, iodine and other ingredients, but also contains vitamin B12 chlorophyll, erythrocyanin, crude fiber, choline, a variety of amino acids and gums, mannitol and other nutrients. Purple cabbage is particularly rich in nutrition, purple cabbage contains protein, and the protein contained in soybeans is almost the same, the carbohydrates contained in a variety of seaweed food, but the content of fat is low. Purple cabbage contains vitamin A and vitamin B1, vitamin B1 for a variety of vegetables of the crown, of which vitamin A can be compared with animal liver, vitamin B2 than mushrooms 9 times more. Nori also contains galactokinase, glycogenase and other nutrients.