How much caffeine does green tea have？

Green tea is one of the traditional Chinese beverages and caffeine is one of the ingredients that many people use in their daily coffee consumption. The presence of caffeine in green tea has also become a topic of great concern. In fact, caffeine does exist in green tea.

Generally speaking, green tea has a lower caffeine content than coffee. The caffeine content of green tea is affected by a variety of factors, such as the picking time, production process, and the part of the tea leaves. Take the traditional Chinese green tea, Longjing tea, for example, the caffeine content is about 20-40 mg per 100g.

In addition, caffeine has a certain stimulating and refreshing effect on the human body, and drinking it in moderation also has certain benefits, but excessive intake can also affect health. Green tea caffeine content compared to other sources of caffeine less, can be consumed in moderation, but also need to control the amount of drinking, to do not excessive intake.

The role of caffeine in green tea

Caffeine is a kind of alkaloid that can stimulate the central nervous system, and it has a certain effect on the human body, which can improve alertness, make people feel refreshed, and remove fatigue, etc. In green tea, caffeine is a kind of alkaloid that can stimulate the central nervous system. In green tea, the effects of caffeine are similar to those of caffeine in general.

Caffeine activates neurotransmitters in the brain and promotes an active cerebral cortex, making a person feel more alert. In addition, caffeine stimulates the production of adrenaline, increasing heart rate and blood pressure, which puts the body in a state of euphoria and improves one's ability to cope with danger.

Green tea contains caffeine. Although the caffeine content of green tea is relatively low compared to other sources of caffeine, it needs to be consumed in moderation to avoid over-consumption of caffeine which may have an adverse effect on human health. The caffeine in green tea is known to be refreshing and stimulating, but it also has side effects such as decreased sleep quality, cardiovascular problems and indigestion. Therefore, drinking green tea correctly can help one enjoy the taste while reaping the benefits of health protection.