Most jellies use seaweed gel. This is a natural food additive. In nutrition, it is called soluble dietary fiber. Fruits, vegetables and coarse grains contain certain dietary fiber, and their main nutritional function to human body is to regulate intestinal function, especially to moisten the intestines and relax the bowels. Jelly has the same function as them. Eating more can increase intestinal wetness and improve constipation. At the same time, adding oligosaccharides to some jellies has the functions of regulating intestinal flora, increasing beneficial bacteria such as Bifidobacterium, strengthening digestion and absorption function and reducing the incidence of diseases. According to the survey, it is a common phenomenon that most people in China consume high-fat and high-calorie foods in their daily diet. When vegetables and fruits cannot be supplemented in time, it is a good choice to eat more jelly to improve digestion. In addition, another advantage of jelly is its low calorie. It contains almost no protein, fat and other heat energy nutrients, so people who want to lose weight or keep slim can safely eat it. It is a good product for weight loss and beauty.