Basal metabolic rate refers to the minimum calorie consumption required by the human body to maintain normal life in a quiet state, which does not include the energy required for physical exercise. Therefore, in the process of losing weight, it is necessary to ensure that the calorie intake is lower than the basal metabolic rate plus the calories consumed by exercise.

If your basal metabolic rate is 1509 calories, if you only control your intake and your calorie intake can't exceed this value, you can lose weight slowly. However, if you want to lose weight faster or cooperate with exercise, you need to calculate the total energy consumption, including basal metabolic rate and energy consumed by exercise.

The total daily calorie intake can be calculated by the following formula:

Total energy consumption = basal metabolic rate x activity coefficient+energy consumed by exercise

At the same time, in order to lose weight healthily, the daily diet should be balanced and scientific. It is recommended to find a professional dietitian to evaluate your specific situation, formulate a diet plan and weight loss goals that suit you, and achieve better weight loss results.