According to the public health network, rock sugar, crystalline fructose and maltooligosaccharide have their own characteristics and advantages, so it is impossible to simply judge which one is better, and each has its own applicable occasions and characteristics.

1. rock sugar: it is a large granular crystalline sugar made by frying white sugar, which is single crystal and polycrystalline, transparent or translucent. It has high purity, can replace white sugar, has its own unique therapeutic effect, and is quite competitive in the market. In addition, because its component is glucose containing crystal water, which is the same as the white sugar decomposed in the body, it can replace white sugar.

2. crystalline fructose: It is the product obtained by crystallizing fructose by industrial technology, and it is the sweetest sugar in nature that human beings first knew. Pure fructose is colorless needle-shaped or triangular crystal with high sweetness, so it is used to produce high-quality chocolate or carob cream in candy manufacturing industry. The application example of crystalline fructose is also in popular food, but because it is mainly sugar, people who need to limit sugar intake should avoid eating it, so as not to increase blood sugar content, which is not conducive to disease control.

3. Maltooligosaccharide: It is refined from high-quality starch by a series of processes such as liquefaction, concentration and drying under the action of enzymes. Maltooligosaccharides include linear oligosaccharides containing only α- 1 4 glycosidic bond and branched oligosaccharides containing α- 1 6 glycosidic bond. Maltooligosaccharides have the characteristics of easy digestion, low sweetness and low permeability, which can prolong the energy supply time, enhance the endurance and resist fatigue.