The key to staying slim and lose weight is to speed up metabolism. Other than sports, black coffee it also can help increase metabolism.

The main thing that causes rapid or slow weight gain is a system of metabolism and calorie burning process. The higher metabolism, the food is digested faster and burn more calories, so it does not cause fat deposits in the body.

Metabolism is the process by which the body converts food and beverages consumed into energy. During a complex biochemical process, calories in foods and beverages are combined with oxygen to release energy required for bodily functions.

Black coffee is one beverage that can help increase your metabolism. In addition to fat-free, black coffee (without sugar) is also free of calories that can play a role in weight loss.

Several studies have shown that caffeine in black coffee  can act as an appetite suppressant, so it can reduce the desire to eat, as reported by MayoClinic.

Caffeine is also believed to give a temporary boost to the metabolism of the body. In this case, the body will digest food to produce energy and heat a little faster than usual. This process is known as thermogenesis.

Caffeine may also stimulate physical activity, which burns additional calories. If caffeine makes you feel more awake, you can burn more calories through thermogenesis and increased physical movement. However, the impact of caffeine on thermogenesis varies from person to person.

For some individuals, caffeine in coffee black and also acts as a diuretic. This means that caffeine caused greater water excretion from the body that is in the form of urine.

Therefore, black coffee can encourage weight loss through water loss from the body. However, this decline is usually not permanent, because the body does not lose any fat.