Selenium deficiency is mainly manifested as alopecia and nail loss, some patients have skin symptoms, and a few patients may have nervous system symptoms and tooth damage. People with mild or moderate selenium deficiency have no obvious signs or symptoms. Diseases that may be caused by selenium deficiency in human body: energy deficiency malnutrition, hemolytic anemia, Keshan disease, Kaschin-Beck disease, hypertension, ischemic heart disease, liver cirrhosis, pancreatitis, fibroma, cancer, myoma, non-pregnancy syndrome, diabetes, cataract, etc.
Guiding opinions:
Selenium-rich foods mainly include various vegetable oils, fresh vegetables and fruits, as well as shellfish, eggs, nuts, wheat, corn, Chinese cabbage, pumpkin, garlic and seafood.
Butter, fish meal, lobster, mushroom, pig kidney, garlic and other foods contain a certain amount of selenium, but the absorption rate is not ideal. Nutritionists advocate supplementing organic selenium, such as selenium polysaccharide, selenium yeast, selenium eggs, selenium-enriched mushrooms, selenium-enriched malt, selenium-enriched gastrodia elata, selenium-enriched tea and selenium-enriched rice.
Long-term selenium deficiency in human body can lead to those 10 major diseases?
At present, scientific research has proved that selenium deficiency will lead to more than 40 diseases such as cancer, liver disease, cardiovascular disease, diabetes, prostate disease and cataract, and indirectly lead to more than 200 diseases. It involves all organs and tissues of the human body.
Selenium deficiency and various diseases
Selenium is an essential trace element for human body. China Nutrition Society also lists selenium as one of the essential 15 nutrients for human body. A large number of clinical experiments at home and abroad have proved that selenium deficiency in human body can cause dysfunction of some important organs and lead to many serious diseases. More than 40 countries in the world are in selenium-deficient areas, and hundreds of millions of people in 22 provinces in China are in selenium-deficient or low-selenium areas. The incidence of tumors, liver diseases and cardiovascular diseases in these areas is very high. Studies have shown that people with low selenium or selenium deficiency can not only prevent the occurrence of tumors and liver diseases, but also improve the immune ability of the body, maintain the normal functions of important organs such as heart, liver, lung and stomach, and prevent the occurrence of cardiovascular and cerebrovascular diseases in the elderly. The study of Keshan disease opened the prelude to people's in-depth exploration of selenium. In the following years, researchers found that the incidence of coronary heart disease and hypertension in high selenium areas in the United States and Finland was significantly lower than that in low selenium areas, and the mortality of cerebral thrombosis, rheumatic heart disease and systemic arteriosclerosis was significantly lower in high selenium areas than in low selenium areas. These results show that selenium plays an important role in maintaining the normal structure and function of cardiovascular system, and selenium deficiency leads to cardiomyopathy, coronary heart disease, hypertension and diabetes. Selenium supplementation is beneficial to reduce the occurrence of various cardiovascular and cerebrovascular diseases, improve patients' symptoms and improve their ability to fight diseases. The medical effect of selenium on heart disease is antioxidation, and the occurrence of cardiovascular and cerebrovascular diseases is related to lipid peroxidation in the body. When the concentration of harmful lipid peroxide in patients' plasma rises, some substances in the blood will deposit on the blood vessel wall, forming coronary atherosclerotic plaques, thus causing coronary heart disease, cardiovascular and cerebrovascular diseases. This is like the reason that rusty pipes are easy to accumulate scale and affect the smooth flow of pipes. Selenium can remove this lipid peroxide, protect the integrity of arterial wall cell membrane, prevent atherosclerosis, reduce thrombosis and prevent myocardial infarction. Regulating blood lipid and preventing thrombosis and cholesterol are the enemies of health. When the cholesterol in the blood rises, it is easy to form atherosclerotic plaques and accumulate on the arterial wall, which narrows the arterial lumen and blocks the blood from flowing into the corresponding parts, resulting in insufficient kinetic energy and triggering various cardiovascular and cerebrovascular diseases. Selenium can regulate cholesterol and triglyceride, reduce blood viscosity and prevent cardiovascular diseases through its powerful antioxidant function. Protecting and repairing blood vessels and resisting the aging of blood vessel walls are important factors in the occurrence of cardiovascular diseases. The reason why most people who died of sudden stroke are middle-aged and elderly people is that after the middle-aged and elderly people arrive, the blood vessel wall becomes very fragile because of the gradual aging, so it is particularly easy to collapse and bleed under the influence of the outside world, leading to thrombosis and cerebral hemorrhage. Vascular aging is not inevitable, because substances that accelerate vascular aging are harmful free radicals. By scavenging free radicals, the aging of blood vessel wall can be delayed. Selenium is a strong antioxidant, which can remove harmful free radicals in the body in time, prevent the aging of human blood vessels and prevent the occurrence of cardiovascular diseases such as stroke. Regulating immunity and enhancing resistance Selenium supplementation can effectively regulate the immune function of patients with cardiovascular and cerebrovascular diseases, improve their resistance to cardiovascular and cerebrovascular diseases and prevent complications. Ordinary people lack selenium, which greatly increases the probability of cancer. Tumor patients with selenium deficiency in the body are likely to have distant metastasis, multiple tumors, poorly differentiated tumors, high malignancy and short survival. Selenium plays an important role in anticancer. In recent decades, through systematic and in-depth research and development by scientists, people have been able to use selenium to prevent and fight cancer, alleviate the pain of cancer patients and prolong their lives. Because selenium has a powerful role in preventing and treating cancer, Taiwan Province Judicial Publishing House named selenium "the king of cancer". The medical effect of selenium on cancer is a prominent phenomenon, and the decline of immune function of tumor patients is also one of the important factors of tumor occurrence and development. Anti-tumor immunity is mainly cellular immunity, so it is very important to improve the cellular immune function of the body. Studies have shown that selenium significantly affects all three regulatory mechanisms contained in the immune system, namely cellular immunity, humoral immunity and nonspecific immunity. Selenium can also promote lymphocytes to produce antibodies, so that the blood immunoglobulin level can be increased or maintained normal. Therefore, proper selenium supplementation in clinic can effectively improve the immune function of patients and enhance the body's anti-cancer ability. Tumor patients who improve their antioxidant capacity have a wide range of antioxidant imbalances and too many harmful free radicals. Selenium can produce many lipid peroxides, hydrogen peroxide and so on through a series of selenium-containing enzymes. ......
What diseases will selenium deficiency directly lead to and what diseases will it indirectly lead to?
1. Selenium has anticancer effect. Selenium deficiency in human body is prone to liver cancer, lung cancer, gastric cancer, esophageal cancer, renal cancer, prostate cancer, bladder cancer, cervical cancer and leukemia.
② Selenium has antioxidant effect. Selenium is the best anti-aging substance. If the human body lacks selenium, it will "no longer be young", leading to premature aging;
③ Selenium can enhance human immunity. Selenium deficiency reduces human immunity.
④ Selenium can antagonize harmful heavy metals. Selenium deficiency can easily lead to poisoning symptoms of heavy metals such as lead, arsenic and cadmium.
⑤ Selenium can regulate the absorption and utilization of vitamin A, vitamin C, vitamin E and vitamin K. Selenium deficiency can cause myopia, cataract, retinopathy, fundus diseases, age-related macular degeneration and other diseases.
6. Selenium can regulate the synthesis of protein. Selenium deficiency can cause energy deficiency malnutrition and chromosome damage in protein.
7. Selenium can enhance reproductive function. Selenium deficiency can cause * * * obstruction, * * low vitality, deformity, decreased pregnancy rate, increased incidence of metritis and other symptoms.
Selenium is an essential component of peroxidase in seminal plasma. When the selenium content in * * * decreases, the activity of this enzyme decreases, which can not inhibit the membrane peroxidation of * * *, resulting in the damage of * * *, the increase of dead sperm and the decrease of vitality.
8. Selenium is an important part of muscle function. Selenium deficiency can make skeletal muscle atrophy and gray-white stripes appear, causing myocardial injury, changes in myocardial cell density, lipid increase and calcium deposition, leading to diseases.
Therefore, men need more selenium, because most of the selenium supplied to the body is concentrated in the reproductive organs and can be excreted together with * * * *. In particular, residents living in highly polluted areas and residents living in selenium-deficient areas need selenium supplementation.
What happens when the human body lacks selenium?
In addition to cancer prevention, other functions of selenium enhance immunity: organic selenium can eliminate free radicals in the body, eliminate toxins in the body, resist oxidation, effectively inhibit the production of lipid peroxide, prevent thrombosis, remove cholesterol and enhance human immune function. (Note: Selenium exists in almost all immune cells) Prevention of diabetes: Selenium is the active component of glutathione peroxidase, which can prevent the oxidative damage of islet β cells, make them function normally, promote glucose metabolism, reduce blood sugar and urine sugar, and improve the symptoms of diabetic patients. (Note: Selenium is an essential component for human body to synthesize various enzymes) Prevention of cataracts: Selenium can protect retina, enhance the smoothness of vitreous body, improve vision and prevent cataracts. Prevention of cardiovascular and cerebrovascular diseases: Selenium is an important element to maintain the normal function of the heart, and it can protect and repair the heart. The decrease of human blood selenium level will lead to the decrease of the function of scavenging free radicals in the body, which will lead to the increase of harmful substances deposition, the increase of blood pressure, the thickening of blood vessel wall, the decrease of blood vessel elasticity, the slow blood flow and the decrease of oxygen transport function, thus inducing the increase of the incidence of cardiovascular and cerebrovascular diseases. However, scientific selenium supplementation has a good effect on preventing cardiovascular and cerebrovascular diseases, hypertension and arteriosclerosis. Prevention of Keshan disease, Kaschin-Beck disease and arthritis: Selenium deficiency is the main cause of Keshan disease and Kaschin-Beck disease. Selenium supplementation can prevent bone marrow lesions, promote repair, and promote disulfide bonds to resist detoxification of metal elements in protein synthesis. It has good preventive and therapeutic effects on patients with these two endemic diseases and arthritis. Prevention and treatment of rheumatoid arthritis: there is an important synergistic effect between selenium and vitamin E. Selenium is a component of glutathione peroxidase in cells and vitamin E is on cell membrane, and the two cooperate with each other to make cells have the ability to resist free radicals. Using selenium to treat rheumatism, some studies have observed the effect of relieving symptoms, such as reducing the number of joint pain and swelling, reducing the time of morning stiffness and so on. Bamboo sun wine is rich in trace element selenium, which has a good therapeutic effect on rheumatoid arthritis. Every gram of Dictyophora dictyophora in Yibin, Sichuan contains 638 micrograms of selenium, which is very rich. It is the food with the highest selenium content according to the current data. It is suggested that people who need to supplement trace non-selenium elements should regularly consume some bamboo products, including dictyophora, bamboo eggs, dictyophora embryos and so on. Choose green, healthy and quality-guaranteed products. You can go to the Taobao shop "Zhuhai Food Store" to have a look. Sichuan Zhuhai Science and Technology Industry Development Co., Ltd. has the top and only research institution focusing on the development of Dictyophora industrySichuan Yibin Dictyophora Health Industry Research Institute, including Wang Ganyou, the "father of Dictyophora industryChina", Jin Baolian, director of China Functional Food Evaluation Center, Huang, expert director of National High-tech Food Industry Committee, Dai Jing, president of Sichuan Health Science and Technology Society, and many other well-known experts and scholars at home and abroad.