Effect of healthy diet on the structure changes of intestinal flora
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Excessive use of preservatives can be fatal to healthy flora in the body
-----Study on the effect of healthy diet on the structure changes of intestinal flora
Nobel Prize winner Riedberg proposed that human beings are a kind of "super-organism": there are a lot of symbiotic bacteria living in the human body, most of them in the human intestines, called intestinal flora, which participate in human nutrition. The metabolic and immune processes, which can be regarded as “the second genome of human beingsâ€, are one of the most important acquired factors affecting human health. A large body of scientific evidence indicates that the intestinal flora may be directly involved in the occurrence and development of metabolic diseases. Unreasonable long-term nutritional composition and unreasonable eating habits will destroy the structure of the intestinal microbial ecosystem, on the one hand, increase the number of pathogenic bacteria in the intestine, increase the total amount of intestinal free antigen; on the other hand, reduce the protective intestinal tract Barrier-functioning bacteria reduce the function of the intestinal barrier, leading to an increase in the antigenic antigen in the blood, stimulating the body's natural immune cells to produce an inflammatory response. Long-term, low-grade, systemic inflammation eventually destroys the insulin receptor and damages the blood vessel wall, leading to the onset of diabetes, coronary heart disease and other diseases. Harmful bacteria in the intestine can also produce neurotoxins and carcinogens, and may also be directly involved in the occurrence and development of diseases such as neuropsychiatric diseases and cancer. Thus, a reasonable diet is the most important factor determining the structure of the intestinal flora. Through a healthy diet and changing dietary structure, the structural balance of the intestinal flora can be restored and established, thus minimizing the levels of free antigens and toxins in the intestine, protecting the intestinal barrier function, reducing toxin intake, and eliminating chronic inflammation. To gradually restore the host's metabolic function and prolong the life of the human.
The normal microflora in the human body is vital and directly affects people's health and longevity. When external conditions change, such as diseases, improper diet, drug abuse, excessive preservatives, etc., all of this will break the original micro-ecological balance in the body, causing dysbacteriosis. Most of the preservatives cannot be completely decomposed in the human body. For example, after sorbic acid is consumed, 10%-50% of sorbic acid cannot be decomposed and can only be excreted with the intestines. In the intestine, there is a normal flora of the human body. Preservatives kill harmful microbes in foods and also kill the normal beneficial bacteria of the human body. Even more worrisome is that preservatives are ubiquitous in today's processed foods, and the microbial systems in the gut are constantly threatened and infested by preservatives. With the change of time and the change of environment, the beneficial bacteria in the intestines are less and less, the harmful bacteria are more and more, and the intestinal tract is also aging, which further leads to the physiological age gradually shortening. On the surface, we have killed the microbes in food and prolonged the shelf life of the food. In fact, we are also killing our own microbes, which invisibly destroys the structure of the intestinal flora in the body. This practice is tantamount to drinking and quenching thirst. Disturbing the intestinal microbial system is equivalent to shortening the intestinal life, which means shortening the physiological life of the human.
From the initial studies, it was shown that the health promotion and longevity of mice are affected by eating habits, which have been observed in many animals to effectively alleviate metabolic syndrome, including primates and humans, and have been shown to reduce fat intake. It can help animals to establish a structurally balanced gut microbiota structure system, reducing the amount of antigen in the gut and benefiting the host. Recently, researchers conducted two lifelong metabolomics studies on dogs and monkeys, showing that lipids are associated with changes in bacterial metabolites, suggesting a potential association between gut flora, diet, and aging. The human gut has a wide variety and high concentration of microbiota, which play an important role in regulating host nutrition, metabolism and immunity. After the nutrient host in the food digests and absorbs, the remaining part reaches the colon to maintain the microbiota. The composition and quantity of the diet can significantly affect the gut microbiota.
Intestinal microbes have been shown to play a key role in the health of the host, and their structure is primarily formed by diet. Studies have shown that life-limiting calorie intake on high-fat or low-fat diets significantly alters the overall structure of the gut flora in mice. In the intestinal flora, a reasonable diet induces changes in the intestinal microbiota, resulting in a significant decrease in serum lipopolysaccharide binding protein levels. These studies suggest that the improvement of the intestinal microbiota structure may be a health effect caused by a low-fat diet. A key factor in the regulation of the regulation of the gut microbiota can be a potential direction for the development of effective anti-aging dietary interventions.
Preservatives are collectively referred to as chemical substances added to foods to prevent food spoilage, prolong food preservation, and inhibit microbial growth in foods. Many preservatives such as benzoic acid and sorbic acid are acidic substances. Eating too much acidic substance directly increases the acidity of the body, which may lead to excessive consumption and loss of iodine, iron, calcium and other substances in the human body, not to mention any kind. Preservatives are harmful to health for long-term consumption. Therefore, the EC Child Protection Group believes that it is not suitable for use in children's food, and Japan has imposed strict restrictions on its use. At present, the commonly used food preservatives in China include benzoic acid and potassium sorbate. Among them, benzoic acid can be metabolized in normal human body; most of potassium sorbate can also be digested in normal human body.
China is currently the world's largest producer and consumer of preservatives, mostly synthetic chemical preservatives. The above research reveals that preservatives may directly expose the body to harmful and toxic by indirectly destroying the flora structure in the body. In the face of germs, destroying the body's immune system, causing the body's resistance to decline and producing inflammation or disease, may cause the current growth trend of liver and kidney cancer patients in China. Therefore, different countries have different restrictions on the understanding and use of different preservatives, such as: the United States allows the use of sorbic acid, Japan does not allow it. In particular, in recent years, under the active guidance of the pursuit of health concepts, some internationally renowned brand food enterprises combined with the characteristics of their processed food properties, through independent innovation of processing technology, comprehensive use of high temperature and high pressure, tank storage, refrigeration, and legislation "by controlling water activity To inhibit the growth of bacteria, and other modern technology and physical methods for sterilization and anti-corrosion, to replace the traditional old-fashioned processing technology that relies on the addition of preservatives to achieve the quality and anti-corrosion of the products, to ensure that the products produced by the process extend the shelf life without adding Or reduce the use of preservatives, greatly increase the safety of food while maintaining the structure of the human intestinal flora, and not cause disease caused by excessive preservatives. At present, many foreign developed countries combine the properties of various processed foods to encourage some food enterprises with mature modern processing technology to actively promote and control the growth of microorganisms through the "water activity" control technology to extend the shelf life of products. For example, Japan clearly stipulates that snack foods such as jelly are not allowed to contain preservatives. In recent years, some domestically leading brand food enterprises in some economically developed regions in China, along with reform and opening up, have strengthened their product export and external processing and boldly introduced modern technology from developed countries, and actively joined the international standards to strictly control the “water activity†of products . Technology, producing a large number of high-quality, delicious and preservative-free safe and healthy foods, so that the majority of foodies truly experience and share the progress of modern technology and the fruitful results of reform and opening up.
In order to protect the health and health of the human body, in order to avoid the daily intake of excessive preservatives, it is harmful to health. In the face of numerous colorful preservative-containing foods and snacks, many white-collar workers began to re-examine and adjust their eating habits and structures without antiseptic. Foods are their first choice. This is a concentrated expression of human pursuit of progress and the pursuit of health. With the continuous advancement of social science and technology, and the continuous improvement of modern food processing technology in China, strict control of "water activity" in the food processing process will become the mainstream process, I believe we will be able to enjoy more quality and delicious in the future. Safe, healthy “preservative-free†food. Because the pace of human progress and the pursuit of health are endless.