What is the difference between red dates and black dates?

black dates are made by picking fresh dates, cooking them, cooling and drying them in the sun, and then baking them in jujube honey with firewood until their skins are wrinkled and black. The tonic effect of dried jujube is greater than that of fresh jujube, and the nourishing and tonifying effect of black jujube is stronger. Black dates are rich in vitamins, which have a strong effect on enhancing immunity in vivo, and have obvious curative effects on cardiac cancer, lung cancer and vomiting blood. Black dates are sweet and warm, which can nourish liver and kidney, moisten dryness and produce fluid. Jujube, also known as jujube, thorn jujube, beautiful jujube and good jujube, is one of the specialties in China. Jujube, with thin skin and thick flesh, moderate sweetness and rich nutrition, is a good tonic for autumn and winter. Jujube has been planted in China for more than 3 years. Jujube can be eaten raw or cooked, and can also be processed into dried jujube, jujube paste, preserved jujube, jujube paste, drunken jujube, smoked jujube, burnt jujube, jujube, candied jujube, canned jujube, jujube tea, jujube wine, jujube vinegar, jujube juice beverage, etc. It can also be used for cooking, and it can be used to stew chicken, duck and pig's feet, etc., all of which are delicious and nourishing. In daily life, traditional foods made of dates are dazzling and have their own flavors, such as jujube zongzi, jujube rice cake, jujube flower cake, jujube roll cake, jujube pot cake, jujube hair cake, fried cake, longevity cake, and jujube paste stuffing, which are used to make various cakes. Chinese honey wine and donkey-hide gelatin candied dates made from red dates are exported to overseas and are highly praised. Jujube is very rich in nutrition. Fresh jujube contains 2%-36% sugar and dried jujube contains 55%-8% sugar. It contains a lot of calories and can be used as a substitute for grain. It was often used for disaster relief in history. The content of vitamin C is among the best in fruits, with a content of . L-.6 g per 1 g, which is about 1 times higher than that of apples and peaches. The content of vitamin P is also the highest among all fruits. People praise jujube as a natural vitamin pill. Every 1 grams of fresh jujube contains 1.2 grams of protein, which is almost the highest among fresh fruits. The heat output of dried red dates is extremely high, about 12-13 kilojoules per 1 grams of red dates, which is close to raisins, and the contents of protein, calcium, phosphorus, riboflavin and nicotinic acid are higher than raisins. Therefore, people have always regarded red dates as excellent tonics. An eclipse of three dates keeps you from getting old at the age of 1. Jujube is not only a delicious fruit, but also a nourishing medicine, which has the effects of strengthening muscles and bones, enriching blood and promoting qi circulation, nourishing body and moistening face. Jujube can be used as medicine, as early as in the "materia medica" has been described. It is said that red dates can invigorate qi and benefit the middle energizer, nourish the spleen and soil, moisten the heart and lungs, regulate nutrition, slow down yin and blood, promote body fluid, delight the color, dredge the nine orifices, help the twelve meridians, and treat all kinds of medicines. Li Shizhen, a great medical scientist in the Ming Dynasty, wrote in Compendium of Materia Medica: Jujube smells sweet and flat, which can nourish the temper, calm the stomach, dredge the nine orifices, help the twelve meridians, replenish less qi, and prolong life by taking it for a long time. Modern medical research shows that jujube has curative effect on allergic purpura, anemia, hypertension, acute and chronic hepatitis, liver cirrhosis and gastrointestinal tumor.