Drinking coffee can improve some body's metabolic ability, and exercise can consume more calories. The premise is that you control your diet and exercise scientifically. If you do nothing, it is impossible to simply expect to lie thin by drinking black coffee.
The principle of drinking coffee to lose weight
Caffeine is a well-known substance in coffee. Caffeine can promote metabolism, but this effect is very small. It is impossible to burn fat and lose weight just by drinking coffee without exercise.
Experiments have proved that a long-term daily intake of 600 mg of caffeine can increase the calorie consumption by about 100 kcal, which can be said to be very small. The calorie of 100 kcal is about equal to an apple or a banana. It is generally understood that drinking it will not make you fat. Therefore, it is basically impossible to lean on coffee, and most people can't insist on drinking 6 cups of coffee a day.
The main function of coffee is refreshing and reducing swelling. For reducing fat, if you exercise, drinking a cup of black coffee before exercise can appropriately increase your exercise heart rate, so that you can have a better exercise state. Moreover, the ability of coffee to improve metabolism can make you consume more calories during exercise. Of course, this improvement is very limited.
If you don't exercise, the function of coffee for you is to make your spirit better, and then it will help your body drain water.
Attention? The above is black coffee. Coffee with sugar and milk will only make you fatter. The little metabolism of caffeine is really not enough.
Choosing to drink coffee before exercise helps to burn fat: black coffee can promote physical function, prolong exercise time, accelerate consumption, and make weight loss twice the result with half the effort.
Drink coffee in moderation.
Coffee is a natural drink with a long history, but large intake of caffeine will have a certain impact on human body: large intake of caffeine will cause gastrointestinal symptoms, such as nausea, vomiting, gastrointestinal discomfort and so on; A study in Europe found that drinking coffee may be related to chronic atrophic gastritis; A large amount of caffeine intake will also cause an increase in blood pressure and increase the risk of hypertension, so patients with hypertension should be more cautious when drinking coffee; Although coffee has a refreshing effect, it affects sleep after excessive drinking, and the neuropsychiatric symptoms brought about by it will also bring trouble to people.
From the above analysis, it can be seen that coffee is definitely not a simple matter of drinking a few more cups, and a little carelessness will make coffee have an impact on normal life. Based on the principle of no side effects on human body, the daily coffee consumption of healthy adults should not exceed 400mg of caffeine intake, and the coffee intake of pregnant women should not exceed 300 mg/d.