The sugar content of dried jujube is as high as 70%, which exceeds the sweetness of sugarcane and beet. Fresh dates. Every100g of fresh jujube contains protein1.2g, which is almost the highest among fresh fruits. The heat output of dried jujube is extremely high, and the heat output per hundred grams of jujube is about 1200- 1300 kilojoules, which is close to raisins, and the contents of protein, calcium, phosphorus, riboflavin and nicotinic acid are higher than raisins. The sugar content is 20%-36%, and the sugar content of dried dates is 55%-80%. It contains a lot of calories and can be used as a substitute for grain. Historically, it is often used for disaster relief. Therefore, jujube should be eaten in moderation, even if it is nutritious, it can not be eaten as a low-calorie food during weight loss.