This article sweeps away all your misunderstandings about coffee

When the first coffee bean was picked, roasted, ground and brewed into mellow and elegant hot coffee, the invention, known as the most romantic, began to spread around the world. According to the statistics of the International Coffee Organization, the world consumes 400 billion cups of coffee every year, and 14000 cups are drunk every second.

As more and more coffee drinks and cafes appear in daily life, Chinese people's enthusiasm for coffee seems to be rising slowly, but when many people mention "caffeine", they always feel that refreshing drinks must be bad for their health.

Is coffee harmful to health? How to drink to get more health benefits? In the face of a lot of right and wrong about coffee, Life Times synthesizes a number of studies at home and abroad and interviews relevant experts to find the answer for you.

Interviewed experts

Fu Changming, Secretary-General of Hainan Coffee Association

Ma Guansheng, Professor, Department of Nutrition and Food Hygiene, School of Public Health, Peking University

Why coffee is so controversial

Many people think that drinking coffee is a kind of evil "enjoyment", one of the reasons is that coffee contains a lot of caffeine, drinking too much can easily lead to increased heart rate, sleep disorders, nausea and vomiting, elevated blood pressure and other uncomfortable symptoms, but also may cause poisoning.

In this regard, Fu Changming explained that the premise that caffeine will cause harm to the human body is "excessive". Coffee contains more than 200 substances, in addition to caffeine, there are protein, fat, nicotinic acid, tannic acid, alkaloids, potassium, dietary fiber and other nutrients. Therefore, it is wrong to equate coffee with caffeine.

Caffeine content is also closely related to the variety of coffee beans. At present, there are two major coffee tree species in the world, Arabica and Robsta coffee beans. The former is of the best quality and the most widely planted, with a caffeine content of about 1% to 1.7%, nearly double that of the latter. Most of the instant coffee sold on the market uses robusta beans.

Another controversial focus of ↑ coffee is "addiction".

British research has found that caffeine is an irritant to the central nervous system. Drinking coffee regularly may lead to mild dependence. If you don't drink it suddenly, you will have headaches, fatigue, anxiety and lack of concentration. But these symptoms disappear after a few days and are not as dangerous as other drugs and do no harm to physical and mental health.