Recently, Shenzhen Guangming district consumer committee carried out a comparative test of pearl milk tea, including hi tea, Naixue tea, taigai and yo! Tea, coco, Yidian, koi, Weixing, Dakasi, mizhilian and other 10 brands of milk tea were detected to contain caffeine, with an average content of 258mg / kg. Among them, the caffeine content of a cup of Michelin classic silk stockings milk tea is equivalent to the total caffeine content of 7 cans of red bull or 3.5 cups of medium cup American coffee.
Is caffeine poisonous? What harm does caffeine do to human body
Is caffeine toxic? Caffeine is harmful to human body.
1. Caffeine poisoning
If you take too much caffeine at one time, you are likely to have symptoms such as' caffeine poisoning '. It can be said that a large dose of caffeine is a drug. Once caffeine poisoning occurs first, patients will have various discomfort symptoms, such as nervousness, irritability, anxiety, tremor and so on.
2. Overexcited
We all know that coffee has the effect of refreshing. This is because coffee contains a lot of caffeine, which can stimulate the central nervous system, so as to refresh and refresh the brain.
3. Fatal
Drinking too much coffee may also be fatal. This is definitely not alarmist, but the latest research results. In the mouse experiment, it was found that the median lethal dose of caffeine was 192 mg / kg body weight, which means that if you eat too much caffeine, you are likely to die.