From a health point of view, which is better, coffee or tea?

Which is better for health, coffee or tea? Scientifically speaking, it must be better to drink coffee (without sugar or others, the same below), because a lot of research evidence has been accumulated to support the health benefits of drinking coffee, including but not limited to reducing the risk of many chronic diseases, such as diabetes, cardiovascular and cerebrovascular diseases (arteriosclerosis, hyperlipidemia, hypertension, coronary heart disease, stroke, etc.). ), Alzheimer's disease, gout and some tumors. In contrast, there is much less research evidence about the health benefits of drinking tea, especially the lack of high-quality scientific research evidence. Of course, this comparison also has a less "scientific" side, because there is less research on drinking tea, so there is less evidence of health benefits.

But in any case, the research evidence supporting the health benefits of drinking coffee is too sufficient, far exceeding the support of drinking tea, and it is overwhelming. Drinking coffee is not only written into the Dietary Guidelines for American Residents 20 15 as a part of a healthy lifestyle, but also gives quantitative suggestions, that is, taking 200~400 milligrams of caffeine (3 or 5 cups of coffee) every day. How about tea? Although it is also recommended in China Dietary Guidelines 20 16, it is only a way to replenish water, and there is no way to give quantitative suggestions. How much tea is better to drink every day? At present, there is not enough research evidence to give scientific quantitative suggestions. We can only say from experience that there are 3 or 5 grams of tea every day (the experience of tea farmers, tea merchants, tea drinkers and tea researchers may be different). In addition, there are many kinds of tea, but the health benefits of different teas do not seem to be very different (according to the current research evidence).

The original intention of drinking coffee is to refresh the mind and maintain a better physical condition, but people are also worried that it will be harmful to health (there were many suggestions for drinking coffee in the past). Now you don't have to worry about injury, and you can still reap health benefits (according to the recommended intake). It's wonderful. How about tea? Although it has always been said that drinking tea is good for health, until now we have not accumulated enough research evidence, which is a bit embarrassing.

A person who neither drinks coffee nor tea, if he must choose one to drink now, he should recommend drinking coffee from the perspective of health and science. Of course, if he must choose tea, there is no reason to object. I drink coffee and tea every day (yes, I drink less boiled water).

Choose what to drink, but also consider your physical condition. Some people are particularly sensitive to coffee, obviously flustered and insomnia, and do not drink "low-cause coffee" (the health benefits of low-cause coffee seem to be not low); Some people are sensitive to tea, flustered, insomnia, gastrointestinal discomfort and so on. So don't drink or drink very weak tea. It is also important not to drink very hot coffee or tea (> 65℃), otherwise it will increase the risk of cancer (recommended by WHO). In addition, pesticide residues in tea, aflatoxin pollution in Pu 'er tea and acrylamide (secondary carcinogen recognized by WHO) produced during coffee baking have also caused heated discussions. These issues are not discussed in this article. From this perspective, drinking boiled water is really a foolproof good suggestion! Why hasn't everyone