Don't use instant coffee, and don't add milk or sugar when drinking; Black coffee is more irritating to the stomach, so don't drink it on an empty stomach; Hot coffee is more effective than cold coffee. Hot coffee can help the body burn calories faster.

Black coffee consumes more calories than white coffee, but the effect varies from person to person. Excessive drinking of black coffee will make people restless, increase their heart rate and raise their blood pressure. Proper amount of black coffee is the right way to lose weight, no more than 3 cups a day.

The benefits of black coffee

Researchers in the Affiliated Hospital of osaka city university found that drinking more than one cup of freshly brewed coffee every day can improve the liver function of patients with chronic hepatitis C, and the research results were published in the American academic journal PLoS One published on 20 13 1 1.

376 patients aged 20-80 with chronic hepatitis C in osaka city university Affiliated Hospital were investigated for the relationship between the change of ALT enzyme quantity (ALT enzyme quantity will increase with the damage of liver cells, which is usually used as an index of liver function) and the frequency of drinking coffee.

The results showed that the ALT enzyme values of patients who drank more than one cup of freshly brewed coffee every day in 1 year were mostly within the normal range compared with patients who did not drink. Moreover, the greater the amount of coffee, the more significant the liver protection effect. The researchers also found that drinking canned coffee drinks, instant coffee and decaffeinated coffee has no corresponding liver protection effect.

Refer to the above contents: Baidu Encyclopedia-black coffee diet, Baidu Encyclopedia-black coffee.