A healthy adult woman needs to consume 1800 ~ 1900 calories every day, while men need 1980 ~ 2340 calories. Among them, the intake of protein should be10% ~15% of the daily calories needed by human body; The intake of carbohydrates should not be less than 55% of the daily calories needed by the human body; The intake of fat should not exceed 30% of daily calories.

In addition, the daily intake of salt should not exceed 6 grams, and the daily intake of dietary fiber should not be less than 16 grams. There is no uniform standard for calorie intake, which should be calculated according to everyone's weight and activity. The heat required by human body varies from person to person, and the main factors affecting heat are labor intensity, age, climate change, body shape, weight and health status.

Calories needed to lose weight:

Generally speaking, if you want to lose weight, you must keep your calorie intake greater than your daily calorie intake. The basic principle of losing weight is that energy consumption is greater than energy intake, so you can increase exercise consumption on the basis of controlling diet to lose weight.

But burning more calories than taking in calories doesn't mean being thin. It doesn't mean that you can lose weight by eating more calories than you do. The most correct thing is that the calorie intake is greater than the calorie intake, but the calorie intake must also be greater than the basal metabolism.

In fact, losing weight is not only consuming energy or calories, but also controlling the total calories. If you want to lose weight, it is best to keep the total calories below 2000 every day. 1600 is a healthy calorie intake, and it is beneficial to cooperate with moderate exercise.