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What is the healthy value of dietary fiber?
Cellulose in human diet mainly exists in vegetables and miscellaneous grains. Although human body can't absorb and utilize dietary fiber, it has irreplaceable health care function. It has the functions of promoting intestinal peristalsis and facilitating fecal excretion. Herbivores rely on microorganisms in their digestive tract to decompose cellulose so that it can be absorbed and utilized.

Dietary fibres includes crude fiber, semi-crude fiber and lignin. Dietary fibres is an indigestible substance. In the past, it was considered as "waste", but now it is considered to play an important role in safeguarding human health and prolonging life. So it is called the seventh nutrient.

Dietary fiber, also known as dietary fiber, is the main component of plant cell wall, mainly composed of polysaccharide and lignin. They can't be digested by digestive enzymes in human intestine, but they can. It is partially fermented and utilized by some microorganisms in the intestine. Dietary fiber is usually divided into soluble dietary fiber and insoluble dietary fiber. The former includes hydrocolloid substances such as pectin and hemicellulose, which can be dissolved in water and form gel in water, and mainly exists in oats and oats. In beans, fruits, seaweed and some vegetables; The latter includes cellulose, lignin and part of hemicellulose, which mainly exists in whole grain products (such as wheat bran), vegetables and nuts.

People who often eat coarse grains (beans, corn, brown rice, potatoes, whole wheat flour) have normal blood lipids, and the time of arteriosclerosis is about 10 year later than those who often eat polished rice and refined flour. With good vascular elasticity, you rarely suffer from cardiovascular and cerebrovascular diseases. Eating cereal fiber can also prevent the occurrence of type 2 diabetes. Studies have shown that the prevalence of diabetes in people who eat less cereal dietary fiber is 2.5 times higher than that in people who eat more.

Reducing blood lipid and preventing diseases: Dietary fiber can bind bile salts in the intestine, thus increasing bile secretion, promoting the conversion of cholesterol into bile acid excretion, reducing blood cholesterol, and helping to prevent hyperlipidemia. Weight loss: Foods rich in dietary fiber are ideal diet foods. Prevention of diabetes: Dietary fiber is a good helper for diabetic patients to control their diet. Treatment of constipation and prevention of intestinal cancer: If constipation persists for a long time, a large number of toxic substances accumulate in the human body, which may lead to a variety of diseases, including intestinal cancer.