Tips for healthy eating
1. What is green food?
Green food can be divided into broad sense and narrow sense: narrow sense green food refers to green vegetables and food in the eyes of ordinary people. Green food in a broad sense refers to pollution-free, safe, high-quality and nutritious food produced according to the principle of sustainable development and approved by specialized agencies.
2. How to identify green food
Green food is strictly packaged in four-in-one, and all green food packages are printed with green food signs, characters, approval numbers and laser anti-counterfeiting signs. Consumers should pay attention to the following three points when purchasing:
(1) logo: The logo of green food is round, consisting of the upper sun, the middle bud and the lower leaves, which means protection.
(2) Text: The word "green food" and its English translation are written in standard fonts and glyphs.
(3) Approval number: The green food approval number consists of English letters "LB" and 12 digits in the form of "lb-xx LB-XX-XXXXXXXXXXX".
3. New regulations on the shelf life of food
The latest provisions of the Ministry of Light Industry on the shelf life of food are as follows:
(1) milk powder: tinplate can be 12 months, glass can be 9 months, and 900g plastic bag can be 4 months.
(2) Sweet condensed milk: 9 months for tinplate cans and 3 months for glass cans.
(3) Malt milk extract: tin-plated tin cans 12 months, glass cans for 9 months and plastic bags for 3 months.
(4) Candy: 3 months in the first and fourth quarters, 2 months in the second and third quarters, rainy season 1 month.
(5) Canned food: 24 months for fish and poultry, 0/5 months for fruits and vegetables.
(6) Drinks: canned and glass-bottled fruit juice and vegetable juice drinks for 6 months, glass-bottled fruit juice soda, fruity soda and cola soda for 3 months, and canned for 6 months.
(7) Alcohol: 1 1- 12 degree cooked beer is above the provincial standard for 4 months and ordinary beer for 2 months. 14 beer for 3 months, 10.5 cooked beer for 50 days, wine and fruit wine for 6 months, sparkling wine for 3 months, bottled yellow wine for 3 months tentatively, and dew wine for 6 months.
(8) Biscuits: tinplate can for 3 months, plastic bag for 2 months, bulk 1 month.
In addition, it takes 3 months to package instant noodles in plastic bags, 3 months to package chocolate, 6 months to package pure chocolate, 65,438+02 months to package fried dried fruits, canned tomato sauce and glass bottles, and 6 months to package soy sauce and vinegar.
4. Five carcinogenic factors in food
(1) nitrosamine: It is the most carcinogenic and the culprit of esophageal cancer, gastric cancer and lung cancer. Common foods containing nitrosamines include sausages, ham, caviar, salted fish and pickles.
(2) Mould: About 10 kinds of moulds can produce highly toxic carcinogens, among which aflatoxin is the most toxic and easy to cause liver cancer.
(3) Food additives and preservatives: Synthetic pigments, such as cream yellow, rose red -B, orange yellow -SS and Sophora japonica, which are commonly used in the past but have been banned at present, all have carcinogenic effects.
(4) High-fat diet: It has a great inducing effect on the incidence of intestinal cancer and breast cancer.
(5) Benzo (a) pyrene: There are a lot of benzo (a) pyrene in cigarettes and incompletely burned smoked food, which is a strong carcinogen in human respiratory tract and digestive tract.
5. Several kinds of food that are easy to be poisoned
(1) Fresh kidney bean: Fresh kidney bean contains saponin and hemagglutinin, which is easy to be poisoned when eaten raw or half-cooked. However, toxic substances are easily soluble in water, not resistant to high temperature, and are non-toxic after cooking.
(2) Autumn lentils: Especially the fresh lentils after frosting treatment contain a lot of saponins and hemagglutinin. Blanch with boiling water before eating, or stir-fry with hot oil until the color changes completely.
(3) Fresh Auricularia auricula: Fresh Auricularia auricula contains a photosensitive substance. After eating, this substance will be distributed in human epidermal cells with blood. Sunlight can cause solar dermatitis, which can easily make the exposed skin itch, edema, pain and even local necrosis. This substance is also easily absorbed by the throat mucosa, leading to edema of the throat. Eating too much can also lead to breathing difficulties and even life-threatening. Dried auricularia auricula is non-toxic and can be safely eaten.
(4) Fresh day lily: Fresh day lily contains a toxic substance called colchicine. Adults can be poisoned by eating 50-100g of untreated fresh daylily at a time. Blanch with boiling water before eating, and soak in clear water before detoxification 1-2 hours. Sun-dried daylily is nontoxic.
(5) Green tomato: Green tomato contains a lot of alkaloids, which can be hydrolyzed by gastric acid into tomato hypoalkali. If you eat too much, you will have poisoning symptoms such as nausea and vomiting.
(6) Long-term storage of pumpkin: The long-term storage of pumpkin petals naturally produces anaerobic glycolysis, which produces alcohol, which will be toxic to people. Check carefully before eating, and don't eat anything that smells of alcohol or has rotted.
6. Whitening food looks good and can't be eaten.
White steamed bread, flower rolls, steamed buns, vermicelli, tremella and other water-borne foods sold in the market may be made of a food whitening agent called sodium bicarbonate. Sodium formaldehyde sulfoxylate, whose chemical name is sodium formaldehyde sulfoxylate, is an internationally recognized carcinogen. Sulfur dioxide and formaldehyde will be decomposed in the process of food processing, which will damage various organs of the human body to varying degrees, especially the kidneys. Long-term consumption has a strong carcinogenic effect.
7. Four ways to dissolve carcinogens in food
(1) Pickled pickles: Pickled pickles contain a certain amount of nitroso compounds. Boiling, drying, hot water washing and other methods can eliminate carcinogens before eating, and the old soup used for pickles cannot be reused.
(2) Meat products such as bacon and sausage: This kind of pickled products contains nitroso compounds, so it is best to cook or steam them before eating, and the soup should be removed. High temperature frying will promote the synthesis of nitroso compounds and increase the content of carcinogens such as nitrosopyridine and dimethylthiamine. Therefore, it is very important to avoid eating fried sausages and bacon in daily life.
(3) Shrimp skin and shrimp skin: Shrimp skin and shrimp skin contain volatile nitroso compounds such as dimethylnitrosamine. It is best to boil them in water or directly expose them to the sun for 3-6 hours before eating them to eliminate and reduce carcinogens.
(4) In addition, when people eat the above foods, it is best to mix some raw fresh fruits and vegetables to reduce the harm of carcinogens to the human body.
8. Drinking raw soybean milk is harmful.
Uncooked soybean milk contains saponin and other substances, which is not only difficult to digest, but also induces symptoms such as nausea, vomiting and diarrhea. Be sure to cook the soybean milk thoroughly before drinking. When the soybean milk is boiled to 85-90%, saponin is easy to expand when heated, resulting in a lot of foam, which makes people mistakenly think that it is cooked. When making homemade soybean milk or boiled soybean, you should heat it at 100℃ for about 10 minutes before you can safely drink it.
9. Food that cannot be eaten on an empty stomach
(1) Tomatoes: Tomatoes contain a lot of pectin, persimmon gum acid and other ingredients, and eating them on an empty stomach can easily cause symptoms such as bloating and abdominal distension.
(2) Milk: Drinking milk on an empty stomach will make the protein in milk "forced" to be converted into heat energy, and there will be no nutrition.
(3) Yogurt: Lactic acid bacteria can't live on an empty stomach, which weakens the health care function of yogurt. Drink it 2 hours after meals, and the nourishing and health care effect is the best.
(4) Oranges: Eating oranges on an empty stomach will cause bad stimulation to the gastric mucosa, making people feel stuffy and pantothenic.
(5) Bananas: Eating bananas on an empty stomach will destroy the balance of magnesium and calcium in human blood and inhibit the cardiovascular system.
(6) Persimmon: Persimmon contains persimmon gum, tannic acid and ellagic acid. Eating it on an empty stomach will lead to "persimmon stone disease".
(7) Sugarcane and fresh lychee: Eating sugarcane or fresh lychee on an empty stomach will cause "hyperosmotic coma" due to sudden infiltration of excessive sugar in the body.
(8) Hawthorn: Eating hawthorn on an empty stomach not only consumes gas, but also increases hunger and aggravates stomach problems.
10. Five foods suitable for daily consumption
(1) Honey: Eating a spoonful of honey on an empty stomach every morning can soothe the five internal organs, relieve pain and detoxify. Regular consumption can prevent arteriosclerosis, and long-term use can prolong life.
(2) Ginger: Taking a few slices of ginger with breakfast every day can promote blood circulation and help digestion.
(3) Peanut: It contains many kinds of amino acids needed by human body. Regular consumption can enhance memory, lower blood pressure and delay aging.
(4) Jujube: It is rich in nutrition and contains more sugar, vitamins and minerals, so it is called "natural vitamin".
(5) Garlic: It has strong bactericidal and bacteriostatic effects, and people regard it as "penicillin growing in the ground" and "natural antibiotic".
1 1. Cruciferous vegetables can prevent breast cancer. Cruciferae vegetables are rich in antioxidant vitamins
C and carotene can resist the damage of free radicals to cells. In addition, these vegetables also contain indole and sulfur-containing organic compounds, the former has the function of preventing breast cancer, and the latter can produce a variety of enzymes in the body to alleviate the harm of carcinogenic toxins. Common cruciferous vegetables are: cauliflower, mustard, cabbage, cabbage, broccoli and so on.
12. Nine newly discovered anticancer foods
(1) Lentinus edodes Lentinus edodes: Polysaccharide extracted from Lentinus edodes has a cancer inhibition rate of 42%.
(2) Asparagus: Asparagus is rich in histone, folic acid, nucleic acid, various amino acids and trace elements, which can enhance the immune function of the body and have a certain preventive effect on gastric cancer and liver cancer.
(3) Seafood: Sea cucumber has obvious anticancer effect, and seaweed and kelp can prevent and treat thyroid cancer.
(4) Soybean and bean products: Phytoestrogens in soybean can inhibit breast cancer and prostate cancer. Protein in soybean can reduce the incidence of breast cancer by half. People who often eat soy products are much less likely to develop esophageal cancer and gastric cancer than those who eat less or not.
(5) Honey: Bee lactic acid has a certain inhibitory effect on cancer cells.
(6) Fruits: apples, oranges, lemons, grapes, apricots and so on. They all contain a variety of anticancer substances.
(7) Oatmeal: Eating a high-fiber diet such as oatmeal can prevent constipation and prevent the occurrence of colon cancer.
(8) Garlic: American researchers found that residents in areas with low cancer incidence have the habit of eating about 20 cloves of garlic every month.
(9) Squid: Squid ink contains anti-cancer substances, which are complex carbohydrate substances combined with sugar, protein and lipids.
13. Foods that children should not eat often
(1) Cola beverage: It contains a certain amount of caffeine, which has a strong exciting effect on the central nervous system of the human body and is likely to cause potential harm to children.
(2) Popcorn: The content of lead is very high, and lead is very harmful to human body.
(3) Ginseng food: Ginseng can promote the secretion of sex hormones, and eating ginseng food will lead to precocious puberty.
(4) Salted fish: contains a lot of dimethyl nitrite, which will be converted into carcinogens after entering the human body.
(5) Canned food: contains a certain amount of additives, which can cause chronic poisoning if eaten frequently.
(6) Bubble gum: It contains many additives such as plasticizer, which is slightly toxic to children.
(7) Street snacks: Pigment and saccharin in some foods greatly exceed the standard, which is harmful to children's health and prone to diseases such as indigestion.
(8) salty food: it is easy to cause high blood pressure in children.
(9) Animal fat: If children eat too much, it will affect their absorption of calcium.
(10) Strong tea: easy to cause iron deficiency anemia in children.
14. It is better to eat less of these four foods.
(1) Preserved eggs: A certain amount of lead is used in the production, which will lead to lead poisoning if eaten frequently.
(2) Stinky tofu: It is easy to be contaminated by microorganisms during fermentation, and it also contains a lot of volatile basic nitrogen and hydrogen sulfide, which decomposes protein.
(3) monosodium glutamate: the daily intake of each person should not exceed 6 grams, otherwise the glutamic acid content in the blood is too high, which will affect health.
(4) Instant noodles: generally contain food pigments and preservatives, which are often unhealthy and easy to cause malnutrition.
15. Strange lead-discharging food
(1) Shrimp skin: The calcium content of every 500g shrimp skin is as high as 250g, which is helpful for discharging lead.
(2) Milk: The protein component contained can combine with lead to form soluble compounds.
(3) Bean products: protein ingredients can play the same role as milk in discharging lead.
(4) Tea: It contains tannic acid and other substances, which combine with lead in the body to form soluble substances and are excreted with urine.
(5) Carrot: It contains a lot of pectin, which can reduce the toxicity and absorption of lead in the body.
(6) Garlic: It can dissolve lead poisoning.
(7) Beef: protein and calcium can prevent people from absorbing lead.
(8) Animal liver: It contains protein and rich calcium, which is very helpful to prevent lead poisoning.
(9) Vitamin C: Vitamin C combines with lead to form insoluble and nontoxic salt, which can be excreted with feces.
(10) Auricularia auricula: It has good anticancer effect and can eliminate lead poisoning.
16. Food not suitable for refrigerator
(1) Banana: If the banana is stored at the temperature below 12℃, the banana will turn black and rot faster.
(2) Ham: When ham is stored in the refrigerator at low temperature, the water will freeze, the fat will precipitate, and the meat will become stale and easy to rot.
(3) Tomatoes: After tomatoes are frozen at low temperature, the meat will crack, with black spots on the surface, immature and tasteless.
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