You can't lose weight by 140 calories a day, because the average energy required every day is 1800 calories. If you only eat enough basal metabolism, the maximum is 1350 calories. Even if there is no activity at all, compared with 1800 calories, the energy deficit is still 450 calories, and you will definitely be hungry (basically more than 300 calories, you will be hungry). It is difficult to persist in going hungry every day, and it will be difficult to lose weight.

The total daily energy consumption of human body is divided into three parts: basic energy consumption, food heat production and physical activity energy consumption. Among them, the basic energy consumption determines the most basic energy demand of human body, and plays a series of important roles in life, such as cell function in vivo, protein synthesis and so on. It accounts for 60%-75% of the daily energy demand.

Extended data

1, the accurate concept of basal energy metabolic rate refers to that when people wake up in the morning in a neutral and mild environment, they are in a state of digestion and absorption (that is, the digestive system is inactive and they need to fast for at least 12 hours).

2. The heat per square meter of body surface area per unit time (usually every minute or hour) when breathing normally and completely relaxing (lying flat without any external muscle movement). Basic energy consumption is obtained by multiplying the basic energy metabolic rate by the time coefficient, but people are usually used to saying basic energy consumption as basic metabolic rate or basic metabolism.

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