10 days! It is more appropriate to drink one or two cups of black coffee every day. Black coffee can refresh and speed up metabolism. Generally, drinking coffee every day should be controlled at about one or two cups of black coffee. Because black coffee contains many nutrients such as protein, carbohydrates, minerals, vitamins, etc., moderate drinking can refresh the mind, so as to have better work efficiency. Therefore, it is more appropriate to drink about 90 grams of black coffee every day, and excessive drinking is not recommended.

If you consume more than 90 grams of coffee every day, it is easy to affect the mental state of patients, and it is also easy to cause certain irritation to the stomach and cause gastrointestinal discomfort. Every food has two sides. Every100g of black coffee contains11.6g of protein, 76g of carbohydrate,101.9mg of vitamin B4 and other nutrients. Generally, people suffering from hypertension, coronary heart disease, arteriosclerosis and other diseases cannot drink black coffee, and pregnant women, children and other people are not suitable for drinking black coffee.