Question

What are the three components that make up total daily energy expenditure?

Answer 1

Total daily energy expenditure consists of the basal metabolic rate (BMR), physical activity, and thermic effect of food.

Step-by-step explanation:

Total daily energy expenditure is the amount of energy consumed and expended by the body in a day. It consists of three components:

1. Basal metabolic rate (BMR): This is the energy expended by the body at rest, in a neutral environment, while in the postabsorptive state. It accounts for about 70% of daily energy expenditure.
2. Physical activity: This includes all movements and exercise, and accounts for about 20% of daily energy expenditure. The level of physical activity can vary greatly from person to person.
3. Thermic effect of food: This is the energy expended during the digestion, absorption, and processing of food. It accounts for about 10% of daily energy expenditure.

These three components together make up the total daily energy expenditure.