As the saying goes, there are many things in convenience foods, such as artificial flavor additives, trans fatty acids, preservatives and sugar. It is unhealthy to drink these things every day.
"How should I drink to be healthy?"
Good question. Whether coffee is harmful or healthy is a stronger topic than Conan's serials for decades. There are more disputes about the sweetness and saltiness of soybean milk, but most of them are speculations made out of nothing, whether it is a blessing or a curse. Is the black liquid in this cup the embodiment of the gods or the messenger of hell? We might as well synthesize professional academic achievements and experience, so that everyone can drink and sleep with peace of mind.
First of all, as mentioned at the beginning, instant coffee is definitely not a healthy drink. People who really love coffee don't drink instant coffee. A friend said, I don't drink instant coffee now, but freshly ground black coffee. I said, it's not bad. It's good for a boy to teach. He said, well, I like to add two packets of cream and two pieces of sugar to my black coffee.
Damn it, you'd better go back and have instant coffee. What is really rich and healthy is of course pure black coffee. The third wave, drinking coffee with sugar and cream, really embarrassed to say hello.
It has been recognized by health and scientific circles that drinking black coffee without sugar in moderation is beneficial to human body. So, what kind of influence does black coffee have on human body? Let's study it in categories.
Nutritional components of coffee
In 2006, Spanish bricklayer Diaz pointed out that the water-soluble dietary fiber in freshly ground coffee was higher than that in orange juice or red wine, and friends in the catering industry were shocked at that time.
Moreover, raw coffee beans are rich in vitamins, including folic acid, vitamin B 1, vitamin B2, vitamin B3, vitamin B 12 and vitamin C, and also contain a lot of antioxidants. In short, there are many good things. The research of Dr. Vinson in the United States proves that coffee contains far more antioxidants than tea and fruits and vegetables, and coffee accounts for 64% of the antioxidants consumed by Norwegians.
A brother asked, what is an antioxidant? As we all know, oxygen is the basic element to sustain life. When we inhale oxygen, we will also produce a by-product, namely oxide free radicals, which will destroy the structure at the cellular level and cause pathological changes. After coffee is roasted, its antioxidant capacity is greatly improved. The generated phenolic acids and melanin are powerful antioxidants, which can repair cells and effectively inhibit chronic diseases such as cancer, cardiovascular diseases, diabetes, Alzheimer's disease, etc., thus making the human body.
Coffee and disease
Recently, many studies have shown that coffee can improve the sensitivity of cells to insulin, enhance glucose metabolism and help prevent diabetes. According to the Dutch Institute of Public Health, the more coffee you drink, the lower the risk of developing type 2 diabetes (adult diabetes). If you insist on adding sugar, please don't bother me. Thank you. People who drink four cups of coffee a day can reduce the prevalence of gout by 40%.
In the past two decades, Japan, the United States and Europe have conducted in-depth research and found that the more coffee you drink, the less likely you are to develop cirrhosis or liver cancer. German scientists reported that espresso can also prevent colon cancer, confirming the role of antioxidants. Nowadays, the anti-cancer effect of coffee has been recognized by the academic circles, and it is really a bunker to catch up with coffee in an instant! There is wood!
About caffeine
Some friends say they like the taste of coffee, but they dare not drink it. They will feel uncomfortable or can't sleep after drinking it. Yes, that's what caffeine does. The name caffeine sounds scary, but it's not heroin after all. Scientists have calculated that the benefits of caffeine not exceeding 300 mg per day outweigh the disadvantages, which is not only different for different people. There are too many things in the world, so pay attention.
There are two kinds of coffee, one is Arabica and the other is Robusta. Arabica is good and expensive, Robusta is bad and cheap. There is another difference between the two brothers. The caffeine content of Arabica is 1. 1- 1.5%, and that of Robusta is as high as 3.2%. Robusta can be found everywhere in instant coffee and low-priced beans.
Does the type of beans determine the caffeine content? No, the amount of caffeine comes out depends on the contact time between hot water and coffee powder. The longer the time, the greater the precipitation ratio. American coffee takes a long time to cook, and caffeine comes out the most; The coffee powder in the press pot has been soaked in water, a little higher; Enthusiasts' favorite hand washing pots and siphon pots, after three or two minutes, all the caffeine is used up before they have time, but all the substances with good taste are used up, so the caffeine will not be too high.
Espresso looks the strongest. Is caffeine the highest? No, there is less caffeine because the extraction time of espresso is short, but some Italian beans blended by Robusta will be higher. But don't underestimate the Italians. They tossed a pot of coffee in a mocha pot five times just to make all the caffeine. They call it "student coffee", which is specially used to learn to refresh themselves. It's good to be young.
In fact, black tea, green tea, cola and chocolate all contain caffeine. Needless to say, this functional drink Red Bull has been selling well for a long time. As long as the intake is appropriate, the problem is not big.
In addition, there are some oily things in coffee, which are considered to increase cholesterol and are unhealthy substances. This scheme is relatively simple, filter paper, all filtered out. Therefore, it is a healthier way to make coffee with filter drip pot and siphon pot.
To sum up, drink coffee healthily and observe the following points:
1, don't overdo it, just two or three cups a day;
2, choose a good variety, choose freshly ground, and drink less instant;
3. Learn to enjoy black coffee without milk and sugar;
4. To make coffee by rapid extraction, such as drip filtration and siphon, filter paper is preferred.
Well, if you master the healthy drinking method and the principle of coffee, you can hold beneficial substances at will, avoid useless ingredients, pick up the coffee cup with peace of mind, and rush to the future without sore waist, leg pain, high blood pressure, diabetes, cirrhosis and cancer ~