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Why starch is a good prebiotic?
Dietary fiber is not digested and decomposed, but can be fermented partially or completely, which can absorb water, make feces bigger, increase water and soften, stimulate gastrointestinal peristalsis, and play a role in relaxing bowels and expelling toxins. As far as its properties are concerned, resistant starch has the function of soluble dietary fiber, which is not easily digested and absorbed by gastrointestinal tract and cannot be decomposed into glucose. However, short-chain fatty acids and gases such as butyric acid are produced by physiological bacteria in the large intestine (colon), which stimulates the growth of beneficial bacteria and exerts their physiological functions by affecting the absorption and metabolism of other substances. Its significance to human health is-

(1) lose weight

Resistant starch itself has very low calories, only about half of sugar. More importantly, it does not digest or absorb, does not add calories to the human body, but can fill the stomach, and the satiety effect is lasting, so it can receive the effect of dieting and losing weight, so it is especially suitable for obese men and women.

(2) Reduce insulin response and regulate blood sugar.

The glycemic index and insulin response of resistant starch are low, and it can't be decomposed into glucose in small intestine, so it won't increase the blood sugar concentration in the body and has little effect on insulin secretion, but it can resist hunger, and is suitable for patients with unstable blood sugar or hyperglycemia.

(3) Reduce blood lipid and prevent cardiovascular and cerebrovascular diseases.

After eating resistant starch, the content of cholesterol and triglyceride in excreta increases, thus reducing the level of cholesterol and blood lipid in blood, promoting bile secretion and circulation, and preventing the formation of gallstones. Resistant starch can also reduce the synthesis of fatty acids, effectively reduce the lipid content in blood and liver and prevent the formation of fatty liver. Foreign researchers tried to feed 40% resistant starch to mice. After a few weeks, the elevated cholesterol and triglycerides of these experimental mice decreased to normal levels. This shows that resistant starch can regulate blood lipid and prevent arteriosclerosis and cardiovascular and cerebrovascular diseases.

(4) Prevention of intestinal cancer

The research data show that the accumulation of phenols, amines and other toxins produced by protein in food during intestinal metabolism may be an important cause of colon cancer. As far as the incidence of colon cancer is concerned, the areas with high starch consumption are obviously lower than those with low starch consumption, which also shows that resistant starch contributes. The secret is that 100% of resistant starch can be fermented and decomposed by bacteria in colon without increasing the amount of feces. After fermentation, on the one hand, its metabolites become the nutritional source of colon flora, reduce the pH value of colon, maintain the acidic environment of intestine, improve the microbial community of colon and promote the reproduction of beneficial bacteria in intestine; On the other hand, short-chain fatty acids such as butyric acid can promote colon health, reduce the production of amine carcinogens, inhibit the production of tumor cells, reduce the proliferation of intestinal mucosal cells, and further reduce the risk of colon cancer; It can also promote the dissolution and absorption of mineral elements such as calcium and magnesium. Undegraded resistant starch can also increase fecal flow and accelerate the discharge of toxic substances, which is beneficial to the prevention and treatment of anorectal diseases such as constipation and hemorrhoids. Intestinal Escherichia coli can also synthesize pantothenic acid, nicotinic acid, riboflavin and other indispensable nutrients for human body.

It turns out that such a good health care product is just around the corner. From now on, change your understanding of it and let it work for our health!