Dietary fiber includes soluble dietary fiber and insoluble dietary fiber

1. Soluble dietary fiber:

comes from pectin, alginate, konjac, etc. Amorphophallus konjac is rich in Sichuan and other places in China. Its main component is glucomannan, which is a soluble dietary fiber with low energy and strong water absorption. Many studies show that Amorphophallus konjac has the effects of lowering blood fat and blood sugar, and has a good laxative effect; Soluble fiber interweaves with carbohydrates such as starch in gastrointestinal tract and delays the absorption of the latter, so it can play a role in reducing postprandial blood sugar;

2. Insoluble dietary fiber

The best source is whole grains, including wheat bran, cereal, whole wheat flour and brown rice, oat whole grains, beans, vegetables and fruits. The effect of insoluble fiber on human body lies in promoting gastrointestinal peristalsis, speeding up the passage of food through the gastrointestinal tract and reducing absorption. In addition, insoluble fiber absorbs water in the large intestine to soften stool, which can play a role in preventing constipation.

The fiber in vegetables (such as Chinese cabbage and celery) belongs to insoluble crude fiber.