Some slim fiber drinks on the market have added visible solid substances, and some are pure drinks for direct drinking. The ingredients in these drinks are water-soluble fibers. A small clinical study shows that people who drink high-fiber drinks do lose 2-3 kilograms in a few months.

Even so, if you don't pay attention to a reasonable diet at ordinary times, it is not reliable to rely solely on such fiber drinks to lose weight. Because water-soluble fiber can inhibit the intestinal absorption of fat, but at the same time it may hinder the utilization of vitamins, minerals and other nutrients. And some sugary fiber drinks may bring more calories.

In addition, everyone's tolerance for water-soluble fibers is different. Water-soluble fiber is decomposed by bacteria to produce methane, carbon dioxide, acetic acid and lactic acid, which can easily cause flatulence, diarrhea and other physical discomfort, so it should be eaten as appropriate.

In fact, the best way to get cellulose is from natural fruits and vegetables. Most high-fiber foods contain soluble and insoluble dietary fiber.

It should be noted that the content of dietary fiber is not necessarily related to the roughness of food, and the chemical properties of cellulose are very stable and will not be destroyed by heating.