First of all, the processing of ingredients into powder is not conducive to the control of blood sugar. Yu Liang, executive secretary of the Chinese Dietitians Union, said that the higher the grinding degree, the more dietary fiber and some nutrients are lost, and the higher the glycemic index is. Professor Liu Jun, vice president of Guangdong Provincial Hospital of Traditional Chinese Medicine, thinks that ground miscellaneous grains are not very friendly to diabetics. The finer the grains of starchy foods such as miscellaneous grains, the faster the digestion and absorption will be. A large amount of absorbed glucose will flood into blood vessels in a short time, leading to a rapid increase in blood sugar. For diabetics or pre-diabetic patients, excessive consumption of whole grain flour with high starch content will lead to a rapid rise in blood sugar and cause blood sugar fluctuations, but it is not good for the body.
Secondly, from the point of view of nutrition, not all foods are ground into powder to be best absorbed. Like barley, its dietary fiber, vitamin B and other nutrients are most easily absorbed by the human body after hydrolysis, so it is best to cook porridge and soup. Of course, the effect of miscellaneous grains powder depends on the collocation, not the more kinds of miscellaneous grains, the more comprehensive the nutrition, but the individual's specific situation. There should not be too many kinds of miscellaneous grains, usually 3~5 kinds, because eating a variety of miscellaneous grains at the same time is easy to cause indigestion.
Finally, in the process of grinding into powder, the sanitary condition is often worrying. Many miscellaneous grains and beans in the booth are put in plastic baskets without dust and fly covers. There are stains on pots, spoons and grinders, there is no disinfection equipment nearby, and the stall owner does not wear masks and disposable gloves. When the business is good, the stall owner collects money while grinding, and the hand that just grabbed the money will directly touch the grinder, packaging bag and so on. "These operations are easy to pollute food, causing food poisoning and some diseases," said Ren Qin, director of the Chinese Medicine Department of Tang Dou Hospital of the Fourth Military Medical University. "If the grinder is not cleaned for a long time, the dust and bacteria left on it will affect the gastrointestinal health."
Li Peng, deputy chief physician of the Department of Gastroenterology, Beijing You 'an Hospital, made a scientific examination.