Coffee has a certain weight loss effect, but it is not reliable to lose weight only by drinking coffee. Caffeine in coffee can promote the decomposition of fat, make fatty acids free from adipose tissue and enter the blood, and achieve the effect of losing weight. Caffeine can raise heart rate, accelerate blood circulation, promote metabolism and promote calorie burning. Of course, the effect varies from person to person. Some people may have obvious weight loss effect, while others may have no obvious or even no weight loss effect. It is recommended to drink black coffee when losing weight, and do not add sugar and coffee partners, otherwise the intake of sugar will lead to drinking coffee, which will not only fail to lose weight, but will increase the risk of obesity.

Generally, after drinking coffee for 30-40 minutes, the concentration of fatty acids in the blood will increase, and the metabolism of the human body will also accelerate. At this time, it is necessary to cooperate with some simple exercises, such as walking for more than 30 minutes, to help consume the calories just ingested and achieve the effect of losing weight. If these people don't control their diet, they will consume a lot of energy, which can't be completely consumed by drinking coffee and a little exercise. The energy will be converted into fat accumulation, which will lead to obesity.

It should be noted that caffeine in coffee will excite nerves, so if you drink coffee improperly, such as drinking too much coffee, you will consume a lot of caffeine, which may lead to headache, insomnia, palpitations and so on. So you need to avoid drinking a lot of coffee because of losing weight; Moreover, the slimming effect of drinking only coffee is not obvious. It is necessary to cooperate with moderate exercise, control diet and adjust work and rest to make the slimming effect better.