Black coffee contains more caffeine than ordinary coffee. Drinking it can speed up the metabolism of the human body. In addition to promoting metabolism, caffeine can also excite visceral sympathetic nerves and promote intestinal peristalsis, so moderate drinking is beneficial to the body and can speed up metabolism at any time, but it is not recommended to drink on an empty stomach and before going to bed, so as not to stimulate the stomach and have a certain impact on sleep.

Can black coffee really burn fat to lose weight? It can help to lose weight.

A cup of 100g black coffee is only about 1-2 kcal, which is almost negligible. Drinking a cup of black coffee after a meal can effectively promote fat metabolism and help you lose weight and burn fat, but the purity of black coffee is recommended to be above 75%, because coffee with too low purity contains a lot of carbohydrates, which not only reduces the weight loss effect, but also may lead to obesity, so black coffee should also lose weight.

Can you lose weight by drinking black coffee on an empty stomach every morning? Drinking on an empty stomach is not recommended.

Although the digestive organs are more active on an empty stomach in the morning, which can better digest and absorb the active ingredients in coffee, accelerate the metabolism of the body, and thus help to lose weight, but the concentration of gastric acid is too high on an empty stomach, drinking coffee will promote the secretion of gastric acid and further increase the concentration of gastric acid. If the gastric acid level is too high, it will easily lead to heartburn, bloating, and even induce serious diseases such as gastric ulcer, so it is not recommended to drink black coffee on an empty stomach in the morning.

When is the best time to drink black coffee to lose weight? It is recommended to drink half an hour before exercise.

Studies show that after drinking black coffee for 40 minutes, the concentration of fatty acids in human blood will rise to the highest level, which is the best time to lose weight by exercise, because fatty acids will promote the decomposition of fat and make exercise slimming more effective. Therefore, if you want to help burn fat and lose weight by drinking black coffee, drinking a proper amount of black coffee half an hour before exercise will bring better slimming effect.