When the alcohol concentration is 3. 1%, the alcohol unit is 3x0.5=0. 15 alcohol units.

Beer. Based on the alcohol concentration of 5%, the daily limit for men is 800 ml (about 2.5 cans calculated by 330 ml per can), and the daily limit for women is 600 ml (about 2 cans calculated by 330 ml per can).

etc

According to the increase of alcohol concentration ratio and the decrease of alcohol consumption.

The average adult male can quickly digest and decompose 26 ml of pure alcohol (60-80 grams) ingested from the outside world every day, which is equivalent to the amount of alcohol in a bottle of beer. If it exceeds this amount, it will be harmful to the liver. Of course, everyone's tolerance to alcohol is different, and the amount of alcohol-decomposing enzymes in the body is also different, so it is impossible to measure the safe amount of alcohol with a unified standard.

When drinking too much, acetaldehyde in the body cannot be converted into acetic acid, which will produce a large number of superoxide anion free radicals, leading to drunkenness or alcoholism. It is best to drink with meals. Because alcohol needs a variety of enzymes and vitamins when it is decomposed by the liver, the activity of alcohol dehydrogenase, which can decompose alcohol, has a time rhythm and decreases at noon.

Under normal circumstances, the higher the alcohol content of wine, the lower the alcohol consumption:

Liquor should generally be controlled at about 50 ml per day; Yellow rice wine can be about 100 ml, red wine can be controlled at 150~200 ml, and beer can be controlled at about 500 ml.

I hope to give a little red flag!