Jelly has high water content, no fat and relatively low calories. Its main components are some soluble gums (water-soluble dietary fiber), which can regulate intestinal function, promote detoxification and excretion of fat, and help to lose weight. A proper diet will not make you fat. However, jelly has a high sugar content. If you don't control your consumption, you will still get fat if you eat too much.

Jelly is made of edible gelatin with water, sugar and fruit juice. Different flavors of jelly have different calorie values because of different ingredients. But in general, because of the high moisture content, most of the calories are not particularly high. Generally, the calorie value of jelly is about 70 kcal/100g.