The calorie content of coffee is about 200 calories for 100 ml, which is equivalent to the calorie content of a bowl of 100 grams of rice, which is considered high. Appropriate drinking some coffee is conducive to the health of the body, for example, in the midday meal after an appropriate cup of coffee can promote the secretion of gastric juice, help digestion and absorption, can prevent constipation. Coffee can quickly replenish the body's energy, relieve fatigue, replenish physical strength, drink a little coffee properly, but also can prevent some cardiovascular disease and Alzheimer's disease in middle-aged and elderly people.

There are three main parts of the calorie consumption pathway, the first part is the basal metabolic rate, which accounts for about 65~70% of the total calorie consumption of the body, the second part is physical activity, which accounts for about 15~30% of the total calorie consumption, and the third part is the thermal effect of food, which accounts for a minimum of about 10%, which has been fixed in roughly the same proportion.