Carbonated drinks-Calcium iron carbonated drinks that affect you include all kinds of soda, flavored soda, cola, flavored cola, and various carbonated drinks.
There are four reasons why carbonated drinks should not be drunk often: carbonated drinks contain gas, that is, carbon dioxide will be secreted by gastric juice, and hyperacidity will easily lead to bloating, loss of appetite and reduction of daily food intake. Insufficient intake of nutrients in diet will affect normal growth and development, learning effect, sports performance, work performance and health.
Carbonated drinks contain sugar. A can of 355 c.c cola contains about 35 grams of sugar, equivalent to 140 calories, equivalent to half a bowl of rice. However, only the calories are equal, but the nutrients are quite different, because sugar has only calories and no other nutrients at all. It is empty card food or junk food with calories. If you drink regularly, every little makes a mickle, you will gain weight and easily develop a bad eating habit of being sweet. You only like sweet water, not boiled water. In addition, sugar has a bad effect on dental health.
Phosphoric acid, another component of carbonated drinks, will reduce the absorption of calcium in the body and affect the normal development of bone growth and height. Children and adolescents in growth and development need enough calcium to make bones grow and develop normally, maintain good bone metabolism and achieve the best bone density, so it is even more inappropriate to drink carbonated drinks.
In addition, phosphoric acid will hinder the absorption of iron, which is one of the main substances for making blood. Once iron is not enough, it will cause iron deficiency anemia. Children who are growing fast need enough iron to make blood quickly.
Especially adolescent girls, the demand for iron is higher, because a lot of iron is lost every month during menstruation. Therefore, girls who love to drink carbonated drinks are more prone to iron deficiency anemia.
Caffeine contained in various colas will contract heart muscles and accelerate heartbeat and breathing; Will * * * gastric acid secretion, harm the stomach; It has diuretic effect, and the elderly are prone to dehydration; Long-term drinking will be addictive. Once you don't drink it, you will feel uncomfortable, listless or have a headache. If you drink too much for a long time, that is, caffeine exceeds 200 mg every day, there will be chronic poisoning phenomena such as indigestion, headache, insomnia, nervousness, trembling, irritability and rapid heartbeat.
Caffeine is found in cola, tea and coffee. A can of 355 c.c cola contains 65 mg of caffeine, a can of 350 c.c oolong tea contains 80 ~ 120 mg, and a cup of instant coffee contains 85~200 mg. Therefore, if you drink more than three cans of coke a day, or drink a can of coke, plus a can of oolong tea and a cup of coffee, you will consume more than 200 mg of caffeine, which will easily lead to chronic poisoning if you drink it for a long time. Tooth corrosion (the protective layer becomes thinner and the teeth become brittle) is caused by acidic substances, while dental caries is caused by eating polysaccharides.
Dr. Locke observed that the teeth of 12-year-old teenagers who drank 28 grams of sparkling drinks every day were obviously eroded; Drinking 4 glasses of sparkling drinks every day, the tooth damage of adolescents aged 12 is as high as 25.2%, and that of adolescents aged 14 is as high as 5 1.3%. Dr. Locke reminded that teenagers should drink as little foamed drinks as possible, and it is best to drink milk and water to avoid tooth damage.
2. Drink knowledge
Beverage refers to liquid food based on water, which is produced by different formulas and manufacturing processes and directly consumed by people or livestock. Besides providing water, beverages also contain different amounts of nutrients such as sugar, acid, milk, sodium, fat, energy, amino acids, vitamins and inorganic salts, so they have certain nutrition.
Beverage classification:
Carbonated drink: It is a sparkling drink made of carbon dioxide gas mixed with various spices, moisture, syrup and pigments. Like coke, soda, etc.
Carbonated drinks: The main ingredients include carbonated water, citric acid and other acidic substances, sugar, spices, and some also contain caffeine.
Fruit and vegetable juice drinks: all kinds of fruit juice, fresh fruit juice, vegetable juice, mixed fruit and vegetable juice, etc.
Milk beverage: fresh milk, fermented milk, flavored milk.
Functional beverage: a beverage that contains a variety of nutrients and meets the special needs of the human body.
Tea drink: Everyone is too familiar with it.
Coffee drinks: instant coffee, brewed coffee.
Packaged drinking water: all kinds of mineral water, purified water, distilled water, etc.
3. Common sense about drinks
How are the ingredients of your drinks made? It is estimated that even many people can't tell clearly, so they can only look at the instructions behind the trademark and spit out one or two key words-sugar and water ... But abroad, people have upgraded the raw materials to white objects-horse's * * *.
Don't make a fuss, it's not uncomfortable, and it's delicious! This original beverage actually appeared as a beverage at the opening ceremony of "Monteath Beer and Food Festival" as early as14th century. Steven, the owner of the bar, also used it to participate in the 1st14th Game Food Festival in New Zealand, and competed with strange dishes such as raw scorpions, chocolate-covered beetles and fried maggots on the stage of the food festival.
Now, this magical drink has appeared again. And began to sell in a bar in Wellington, New Zealand.
This apple-flavored Ma Jing specialty drink costs $20 and comes with 20 cups. The raw materials are strange, but the price is quite high.
Then it caused quite a stir, and people had different opinions about it. Beverage manufacturer Kyle slack is a racehorse breeder on Christchurch Island.
He heard that someone drank cow's * * to refresh the kidney, so he came up with the idea of using horse's * * * to make energy drinks. He said, "stallions are full of testosterone and have almost no excess cholesterol.
Therefore, after drinking the energy drink made by stallion, you will feel like being possessed by stallion, and you won't feel tired for a week. In addition, everyone can rest assured of the safety of this drink.
We use a special artificial imitation * * * to collect the stallion's * * *, and then carefully prepare it with a special formula. The final product tastes like a milkshake. In the manufacturing process, an energy drink named "Golden Horse" will be added. As for why Golden Horse is chosen instead of Red Bull in similar products, "This is because Red Bull reminds people of" cow "instead of" horse ",that's all," Kyle slack explained.
Although Kyle slack has never personally tried his own "Ma Jing Special Drink", he is full of confidence in the future of this product. Megan Wilson, a spokesman for the Game Food Festival, believes that although "Ma Jing Special Drink" is somewhat special, perhaps only those particularly brave food lovers dare to try it, the organizing committee has never doubted the delicacies that can appear at the Game Food Festival.
Jason Kawara Tsutomu, a famous chef, told the New Zealand Post, "In fact, horses are more popular with women, although some women joked that they were worried that their children would have a horse face when they were born. Although some men who have drunk horse feel that it tastes a bit like a milkshake, most men are indifferent to horse. "
The latest research in the United States shows that drinking 1 to 2 glasses of beer every day is helpful for healthier bones. For women, drinking 1 to 2 glasses of wine every day has the same effect.
This research is based on the experiment of 2900 men and women. The research results of American Human Nutrition Research Center show that beer contains silicon, so it is beneficial to bone health. Wine is rich in phytochemicals, which is also good for bone health.
However, researchers remind people that moderate drinking is very important, that is, two glasses of wine with a capacity of 6 ounces a day are good for bone health, but the opposite is true-if drinking too much, it will lead to osteoporosis. Wine and lager beer also increase the risk of tooth damage, but the pickled onions and grapefruit you usually eat less will not damage your teeth.
David, the head of the study and a professor of dentistry at King's College London? Bartlett said: "This is not only about what we eat, but also about how to eat." The doctor said that eating apples is good for health, which is true, but if you eat apples slowly, the acidic substances in apples will damage your teeth.
Drinks are the most frequently mentioned things that damage teeth, especially cola, but studies show that they do not damage teeth as much as expected. At the same time, the results of this study show that dental care advice should be aimed at foods with high acidity, rather than drinks that people usually drink.
Some apples contain up to 4 tablespoons of sugar, which will increase the level of acidic substances in the mouth. Glenys Jones, a nutritionist at the Institute of Human Nutrition of the British Medical Research Council, said: "Fruits are often very acidic and obviously contain sugar, but I don't want people to be reluctant to eat fruits and drink juice."
One suggestion is to eat apples with milk or a small piece of cheese, because both milk and cheese contain calcium, which can neutralize the acid in fruits. Drinking water immediately after eating apples can also protect teeth, because it can wash away substances that damage teeth.
Jones also said: "Drinking juice and other drinks through straws is also a way to protect your teeth. Brushing your teeth before eating acidic food can also protect your teeth because it will form a barrier between food and teeth. "
Compared with ordinary women, women who drink caffeinated coffee seem to be less prone to depression. Moreover, in the Archives of Internal Medicine published on Monday, a survey showed that the more you drink, the less likely you are to suffer from depression.
From 1996, more than 5,000 women aged 30 to 55 were investigated for ten years, and their mental health and coffee intake were recorded regularly. They found that women who drink two or three cups of coffee a day have a lower risk of depression than women who drink only a little or no caffeine.
Women who drink four or more drinks are 20% less likely to suffer from depression. Although it is not clear why coffee avoids depression, scientists at Harvard University speculate that caffeine is the key factor.
People need to do more experiments to prove whether caffeine can inhibit depression. In other words, people who are not depressed tend to be more active, and the habit of drinking coffee is just their lifestyle.
However, those who are depressed may suffer from insomnia at night. If they suffer from insomnia, they will stop drinking coffee, because caffeine will worsen insomnia. In previous studies, Japanese researchers discussed the relationship between drinking green tea and relieving mental illness. It was found that people over 70 years old who drank four or more cups of green tea every day had a lower risk of depression.
4. What is the common sense of purchasing carbonated drinks?
Carbonated drinks contain a proper amount of carbon dioxide gas, which is an important quality feature of this kind of drinks, that is, it has its unique sweet and sour taste and the cool taste of carbon dioxide.
Carbonated drinks can be divided into two categories, namely fruit juice and fruity soda. The difference between them lies in the amount of raw fruit juice, which is higher than 2.5% and fruity soda is lower than 2.5%. The liquid level of bottled soda should be 3-6 cm away from the bottle mouth, and the bottle mouth should be clean and weightless. Plastic bottles or cans can not be pinched by hand, nor can they be shaken up and down. If there are a lot of bubbles in the bottle, it means good sealing.
After the transparent soda water is inverted, light inspection should be carried out, and there should be no clouds or small particles; The slurry type shall not have stratification and obvious precipitation. If the sweetness is not enough, it means that the soda has gone bad.
5. Chemical experiment of carbonated drinks
1. Verification of substances in carbonated drinks: When carbonated drinks are dropped into clear limewater, obvious precipitation will be seen. Because carbon dioxide always exists in it, there is no need to collect gas and then introduce lime water, so there is no need for air tightness. After the precipitation is formed, dilute hydrochloric acid is added to dissolve the precipitation, which is also obvious.
2. Verify the instability of carbonic acid (i.e. the product of the reaction of carbon dioxide with water) in carbonated drinks:
If you take out a little carbonated beverage from the beaker, you can see that it bubbles slowly, indicating that carbonic acid is unstable and easy to decompose. Then you can heat it with an alcohol lamp, and you can see that bubbles are released much faster when the temperature rises, which means that the higher the temperature, the faster the decomposition. At the same time, put the lit wood on the mouth of the beaker, and you can see that the burning wood has gone out, so you can conclude that carbon dioxide has been released inside.
3. Add litmus into the carbonic acid solution, the solution turns red, and then heat it slowly. With the increase of temperature, bubbles are gradually released, the content of carbon dioxide in the solution decreases, and the pH value increases, which makes the red color of the solution gradually fade.
The above experiments do not need complicated instruments, and the gas collection and air tightness are very convenient.
6. Health tips
Common sense of life and health
1, often eat midnight snack. You will get stomach cancer because your stomach can't rest.
You can only eat four eggs a week. Eating too much is harmful to your health.
Chicken * * * contains carcinogens, so it is best not to eat it.
It is a wrong idea to eat fruit after meals. It should be eating fruit before meals.
5. Girls should not drink green tea during menstruation. No tea anyway. Eat more things that can replenish blood.
6. Don't add eggs and sugar to drink soybean milk, and don't drink too much.
7, don't eat tomatoes on an empty stomach, it is best to eat after meals.
8.wake up in the morning. Drink a glass of water first to prevent stones.
9. Don't eat three hours before going to bed. You will get fat.
/kloc-0 0, drink less milk tea. Because it is high in calories and oil, it has no nutritional value. If you drink it for a long time, you are prone to diseases such as hypertension and diabetes.
1 1, freshly baked bread is not suitable for immediate consumption.
12, away from the charging stand. The human body should be away from more than 30 cm. Never put it by the bed.
13, drink eight glasses of water every day.
14, ten glasses of water a day. Bladder cancer is not coming.
15, drink more water during the day and drink less water at night.
Do not drink more than two cups of coffee a day. Drinking too much can easily lead to insomnia and stomachache.
17, eat less greasy food, because it takes 5~7 hours to digest, so that the blood in the brain is concentrated in the stomach. It is easy to faint.
Sleepy
18, after 5 pm. Eat less big meals, because you don't need so much energy after five o'clock.
19, 10 Food types that will make you happy: deep-sea fish, bananas, grapefruit, whole wheat bread, spinach, garlic and pumpkin, with low content.
Buttermilk, chicken, cherry
20, lack of sleep will make you stupid, you must sleep eight hours a day, and you will not get old if you have a nap habit.
2 1, the best sleep time is 10 at night to 6 am.
22. Don't drink more than one glass a day, because alcohol will inhibit antibody-producing B cells and increase the chance of bacterial infection.
23. Take the capsule with cold water (you can eat it first) and take the medicine 30 minutes before going to bed. Avoid lying down immediately.
24, sour plum has the effect of preventing aging and keeping young forever; People who are angry should eat more.
25, hair loss factors: staying up late, stress, alcohol and tobacco, spicy chicken chops, spicy pots, greasy food, over-flavored dishes.
26, help hair growth: eat more cabbage, eggs, beans; Eat less sweets (especially fructose)
27. A glass of lemon juice and orange juice every day. It can not only whiten skin, but also fade dark spots.
28. Apple will always be a good medicine for motorcyclists, addicts and housewives. Only one apple a day can make you have one.
Clean the lungs
29. Smoking and taking vitamins (a vitamin B carotene -A) can lead to cancer. Quit smoking as soon as possible. It is the healthiest.
Practice of
30. Five periods when women should not drink tea: when menstruation comes, pregnant women, before labor, after childbirth and menopause.
3 1, smoking, the biggest relationship is lung cancer, lip cancer, tongue cancer, laryngeal cancer, esophageal cancer and bladder cancer.
32. Drinking alcohol leads to cirrhosis and liver cancer.
33. eat areca can cause oral fibrosis and oral cancer.
34. The food is too fine and lacks fiber; Containing a lot of fat, especially cholesterol, can cause gastric cancer.
35. The food is too rough, and when the nutrition is insufficient, it will lead to esophageal cancer and gastric cancer.
36. Aflatoxin and nitrite in food are carcinogenic.
37. Don't smoke. Refuse to smoke secondhand smoke.
38. Drink moderately and don't fight for a long time. Don't get drunk.
39, reduce the consumption of salty, smoked, barbecue food.
40. Eat fresh vegetables and fruits every day.
4 1, daily intake of high-fiber grains and beans.
42. Eat a balanced diet every day and don't overdo it.
43. Maintain an ideal weight. Don't be too fat.
44. Keep a regular life and exercise.
45. Keep a relaxed and happy mood.
46. Correct eating habits: Eat like an emperor in the morning, like a commoner at noon and like a beggar at night.
7. Chemical experiment of carbonated drinks
1. Verification of substances in carbonated drinks: When carbonated drinks are dropped into clear limewater, obvious precipitation will be seen. Because carbon dioxide always exists in it, there is no need to collect gas and then introduce lime water, so there is no need for air tightness.
After the precipitation is formed, dilute hydrochloric acid is added to dissolve the precipitation, which is also obvious. 2. Verify the instability of carbonic acid (the product of the reaction between carbon dioxide and water) in carbonated drinks: If you take some carbonated drinks out of the beaker, you can see bubbles emerge slowly, indicating that carbonic acid is unstable and easy to decompose. If you heat it with an alcohol lamp, you can see that the speed of releasing bubbles is obviously accelerated after the temperature rises, indicating that the higher the temperature, the faster the decomposition.
At the same time, put the lit wood into the beaker mouth, and you can see that the burning wood is extinguished, so you can conclude that carbon dioxide is released. 3. Add litmus into the carbonic acid solution, the solution turns red, and then heat it slowly. With the increase of temperature, bubbles are gradually released, the carbon dioxide content in the solution decreases, the pH value increases, and the red color of the solution gradually fades. The above experiments do not need complicated instruments or gas collection, which is very convenient.