Analysis:
Food that can enhance immunity
The first phase of healthy food: tea, papaya juice, tomatoes, oranges, oranges and carrots.
Drinking tea can enhance the resistance to bacteria.
Drinking tea will keep you away from the doctor. A new study believes that theanine contained in tea can enhance the body's resistance, which is not available in coffee.
A study published in the new issue of Proceedings of the National Academy of Sciences said that researchers from brigham Women's Hospital and Harvard Medical School found in laboratory experiments that tea contains a substance that can make the immune system attack invading bacteria, viruses and molds.
Papaya juice can enhance immunity.
Luc Montagnier, president of the World AIDS Research and Prevention Foundation, said that the juice extracted from fermented papaya can enhance human immunity and fight against some viruses, including SARS, but there is still a lack of research in this field.
Montagnier said: "Papaya juice contains some substances that can improve immunity and antioxidant capacity. Although we have not studied the oxidation ability of SARS patients, I think it is feasible. " Montagnier said that he had recommended this extract to his peers to treat French SARS patients.
Eating oranges and tomatoes can prevent diseases.
Improving self-immunity is one of the effective ways to prevent SARS. In recent days, the sales of vitamins and American ginseng in some pharmacies have increased greatly. However, medical experts warn that taking these supplements will not be immediate, and it will take at least a week to take effect.
According to experts, proper vitamin supplementation can enhance human immunity. Healthy people had better absorb vitamins by eating fruits and vegetables. At present, tomatoes, strawberries, carrots and oranges, which are widely sold in the market, contain a lot of vitamins.
Eating carrots in spring enhances immunity.
Relevant data show that the lack of vitamin A in children is the main cause of respiratory diseases. Experts emphasize that lack of vitamin A can easily cause respiratory and digestive tract infections. Once a cold or diarrhea occurs, the level of vitamin A in the body will further drop. Vitamin A deficiency can also reduce the body's antibody response, leading to decreased immune function. The protective effect of vitamin A on respiratory tract and gastrointestinal mucosa has been widely confirmed.
Supplementing vitamin A from food is a safe and effective health care method. Among many foods, carrot is the best way to supplement vitamin A. To fully absorb carotene, the scientific and reasonable way to eat it is: carrots should be cooked before eating, and the best cooking methods to maintain their nutrition are two points: First, cut carrots into pieces, add seasonings, and stir-fry with enough oil; The second is to cut carrots into blocks, add seasonings, and stew them with pork, beef and mutton in a pressure cooker 15-20 minutes. Carotene is easy to be oxidized. Cooking in pressure cooker can reduce the contact between carrots and air, and the preservation rate of carotene can reach 97%.
The second stage: animal liver, seafood, mushrooms, Pleurotus ostreatus, garlic, yogurt and spinach.
In the struggle between human immune system and viruses, bacteria and other pathogens, it is of great significance to improve self-immunity. Generally speaking, the stronger the immune function of the human body, the less likely it is to be attacked by viruses. Even if you are unfortunately infected, you can minimize the degree of virus attack.
A balanced diet and reasonable nutrition are helpful to improve human immunity. Here are some dietotherapy methods that can enhance immunity:
Eat animal liver properly. Anne Mackenzie, a Canadian nutritionist, believes that animal liver is rich in many substances that help to promote immune function, such as trace elements selenium, zinc, copper, magnesium, iron and folic acid, vitamin B6 and vitamin B 12.
Eating more seafood, oysters, scallops, razor clams, marine fish and other foods is rich in zinc, which can promote the production of T cells and antibodies. Dr spector's research in the United States found that zinc helps to restore the damaged immune system function.
Eating anti-virus substances such as mushrooms, shiitake mushrooms, Grifola frondosa, Pleurotus ostreatus and Hericium erinaceus can help to enhance immunity.
Eating garlic can activate T lymphocytes and macrophages and enhance immunity.
Have some yogurt. The latest research found that yogurt can produce interferon-γ, improve the activity of natural killer cells and promote the production of antibodies.
Eat more fruits and vegetables, such as spinach, carrots and cauliflower. , rich in beta carotene, can promote the increase of immune cells, and rich in vitamin C, fruit with certain antiviral effect. For example, eat two oranges or oranges every day.
Drink more tea According to the research of Dr. Jack bukovski of Harvard Medical School, drinking five cups of tea a day can enhance the body's disease resistance. The reason is that L- theanine contained in tea can be decomposed into ethylamine by the liver, which can enhance the γ-δT cell response in the immune system.
The third stage: hawthorn, seabuckthorn, spiral bath, aloe, ginger, propolis, milk and soybean.
When it comes to disease prevention, many experts remind people to enhance their immunity. The immune system plays an important role in people's health. Play strengthens the body. Besides regular exercise and maintaining psychological balance, a reasonable diet is also important. Here are several foods that can significantly enhance the body's immune function.
Hawthorn: Hawthorn is deeply loved by people. Its main functions are to help digestion, protect cardiovascular system, reduce blood fat, lower blood pressure, resist bacteria, lose weight, resist tumor, remove free radicals and enhance immunity.
Garlic: Garlic has antibacterial and anti-inflammatory effects, which can protect the liver, regulate blood sugar, protect the cardiovascular system, resist hyperlipidemia and arteriosclerosis, and resist platelet aggregation. Nutrition experts have found that garlic extract has anti-tumor effect, so it is recommended to eat 3-5 grams of garlic raw every day.
Seabuckthorn: Seabuckthorn grows in the semi-hilly area and is rich in vitamin C, which can promote hematopoietic system, resist fatigue, protect digestive tract, remove free radicals, improve vascular system and enhance immunity.
Spirulina: The protein content of Spirulina is as high as %-70%, and its biological value is 68%. Spirulina is rich in carrots, vitamins, vitamin E and other vitamins, which can improve the PH value of body fluids, correct acidic constitution, make human body slightly alkaline, thus improving human immunity, and has anti-tumor and anti-AIDS effects.
Aloe vera: Aloe vera, like Jinxiang, garlic, onion and wild lily, belongs to perennial herbs of Liliaceae. It mainly grows in dry and hot areas and has strong vitality. Has effects in clearing away heat and toxic materials, relieving diarrhea, diminishing inflammation and bacteria, enhancing immunity, protecting stomach and liver, and caring skin.
Ginger: It is not only a condiment, but also a nutrient. Its main functions are anticoagulation, reducing blood lipid and preventing stroke. Raw slices are the best.
Mushrooms: Since ancient times, mushrooms have been called "elixir of life". It has an excellent filtering effect on viruses, and the "Mushroom Hot Pot Banquet" in Yunnan is a medicated diet for strengthening the body.
Propolis: Propolis can improve the ability of human macrophages to swallow viruses and bacteria, and make the body's immunity in the best dynamic balance. It is called "natural immune enhancer".
Milk and soybeans: Milk and soybeans are high-protein foods. Anders-Heckensson research team of Lund University in Sweden found that casein and ovalbumin in milk can enhance the anti-infection ability of respiratory tract and internal organs and prevent viruses and bacteria from adhering to respiratory tract. Soybean protein in soybean is digested, absorbed and utilized by human body to a very high degree. It can form antibodies in the body like milk protein.
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I. protein
Protein is the basic element of human cells and the main component of white blood cells and antibodies. If the body is seriously short of protein, it will reduce the number of lymphocytes and lead to a serious decline in immune function. Therefore, eating more foods with high protein content, such as fresh meat, chicken, duck, fish, eggs, milk and dairy products, and rich animal protein can help you improve your immunity. It is suggested to drink one or two glasses of milk every day and maintain proper intake of protein, which can maintain the body's basic defense ability!
Two. vitamin A
Vitamin A is related to the integrity of cells and can help cells to resist oxidation. If the body lacks vitamin A, the volume of thymus and spleen will be reduced, and correspondingly, the vitality of natural killer cells will also be reduced. Therefore, taking enough vitamin A can enhance the vitality of immune cells and increase the number of immune cells.
Three. vitamin C
Vitamin C can promote the immune system, increase the ability of white blood cells to swallow bacteria, enhance the ability of thymus and lymphocytes, help the human body to increase resistance and increase the content of interferon in the blood. It is an effective antioxidant, which can resist destructive molecules and is one of the vitamins to enhance immunity. Apples, lemons, oranges and other fruits and vegetables rich in vitamin C are all good food sources to enhance immunity.
Four. tocopherol
Vitamin E is the bane of free radicals and can also promote the production of antibodies. From the antiviral point of view, it has antioxidant effect and strengthens immune cells. Generally speaking, beans, wheat germ, fruits and vegetables, vegetable oil and stone fruit contain more vitamin E, but due to the change of modern people's eating habits, the diet is unbalanced, and the content of vitamin E that can be ingested from food is very low. If you are worried about the recent SARS epidemic, you can use nutritional supplements to supplement the vitamin E your body needs.
B vitamins and minerals
Vitamin B group is related to the production of antibodies, leukocytes and complements in vivo. Lack of vitamin B group will affect the number of lymphocytes and antibody production, and will also cause thymus atrophy. Vitamin B mainly exists in milk, fresh meat, green leafy vegetables, whole grains and other foods. People with weak immunity can take more of these foods to enhance their immunity. In addition, minerals also play an important role in affecting human immunity.
Lack of "iron" will reduce the ability and activity of phagocytes;
Lack of "zinc" will cause thymus atrophy and reduce the ability to destroy cells; Lack of "copper" will affect the production of antibodies.
Magnesium can improve the function of T cells and B cells.
"Selenium" can reduce the deformation of virus, prevent virus infection and improve the ability of immune cells.
Eat more garlic.
Garlic has the functions of antioxidation, enhancing immunity and antivirus, inhibiting cytomegalovirus, promoting T lymphocyte transformation, improving the activity of white blood cells and macrophages, delaying and partially inhibiting the synthesis of bacterial DNA and protein, achieving antibacterial and bactericidal effects, and preventing and treating various infectious diseases.
Therefore, if you can eat garlic every day, the amount of about two cloves can not only enhance immunity to prevent diseases, but also reduce the chance of death from SARS.
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Rule 1: balanced nutrition
In order to eat healthily and enhance the immunity of the body, the most important thing is adequate and balanced nutrition, which is most often ignored by modern people and the most difficult thing to do. For most people, the first consideration is whether it is inconvenient, full and delicious. Only a few people will give priority to "balanced nutrition".
The principle of nutritional balance is actually very simple. Eat about three to six servings of staple food, two cups of milk, four to five servings of eggs, fish and beans, at least three servings of vegetables (preferably dark green vegetables), two servings of fruits and two to three tablespoons of oil every day. Especially for most people, the intake of vegetables and fruits is obviously insufficient, and sometimes even one can't be eaten. Therefore, we should remind ourselves that we must eat vegetables and fruits at every meal, and have a diversified diet. Don't always eat certain foods, which will easily waste nutrition.
Rule 2: Drink more water, exercise more and have more rest.
Drink more water: it can promote metabolism in the body, so adults must consume about 2000~2500 ml of water every day.
Exercise more: Do at least 30 minutes of aerobic exercise every day, such as walking, swimming or cycling. Only by maintaining a healthy body and an ideal weight can we have enough vitality to fight the virus!
Get more rest: going to bed early and getting up early seems to be a fantasy for people with modern diversified nightlife. More and more people stay up late, work overtime, surf the Internet or enjoy nightlife. However, staying up late will lead to lack of sleep, leading to decreased immunity. Therefore, sleep when it is time to sleep, start when it is time to get up, conform to the physiological clock of the human body, and get enough sleep and rest to maintain the body's immunity and fight against viruses!
Rule 3: Eat less sweets, eat less fat and drink less.
Food is like a knife, it can save people or kill people. Therefore, people are reminded that it is best to eat less foods that will reduce immunity, otherwise it will not only interfere with the vitality of immune cells, but even inhibit the formation of lymphocytes and damage immune function.
Eat less sweets: sweets will affect the production and activity of white blood cells and reduce the body's ability to resist diseases. Therefore, Professor Xie Mingzhe emphasized: "Don't gamble on your health because of a temporary appetite, it is very unworthy! 」
Less fat: eating too much oil, especially taking too much bad fat, will hinder the immune ability and make the immune cells in the body lazy and unable to function. Therefore, it is suggested to reduce the consumption of edible oil and the intake of high fat and salt, especially fried things and fat.
Drink less alcohol: drinking alcohol will seriously weaken the normal function of various immune cells, and also affect the function of liver and pancreas. Except alcohol, cigarettes, coffee, drugs, etc. Not only will it reduce human immunity, but it will also be harmful to human body, so refusing to associate with these things is definitely the best policy. As the saying goes, "Laughter cures all diseases", facing life with a positive outlook on life, moderately relieving stress, being close to nature and smiling more are excellent partners for various methods to enhance immunity!