It is ok to drink 4 grams of black coffee every day. Generally speaking, moderate intake of coffee is harmless to the human body. Remember not to drink too much. Because black coffee contains caffeine, caffeine will excite sympathetic nerves after entering the body, thus clearing people's drowsiness. It can stimulate the central nervous system of the brain and should not be drunk excessively.
Precautions for black coffee
No sugar. Black coffee with a cocoa purity of more than 75% has a strong and bitter taste, which people say is unacceptable, so people choose to add sugar to drink black coffee. It is difficult to achieve the effect of losing weight. Never add condensed milk, sugar cubes and sugar to black coffee. Sugar substances will affect fat decomposition and increase calories. If you really can't stand the bitter taste, you can add a little sugar-free milk to taste, but don't overdo it.
It is most effective to drink at 1 hour 30 minutes after meals. Tasting a cup of strong black coffee within 30 minutes to 1 hour after a meal can not only relieve your nervous working mood, but also help you to get back on your feet and meet more challenges at work, effectively decompose the fat eaten at lunch, help digestion after a meal and promote fat burning. If you can drink it for a long time, you can also solve constipation.