Intake and Expenditure Information
Calorie Intake and Expenditure
The Calorie Equation
Weight gain or weight loss is determined by the "calorie equation." If calorie-intake exceeds calorie-expenditure, we gain weight. If calorie-intake is less than calorie-expenditure we lose weight. If calorie-intake equals calorie-expenditure, our weight remains static.
All foods contain calories. Our calorie-intake is simply the total number of calories contained in the food (or drink) we consume.
Calorie expenditure is made up of three things. (1) Our Basal Metabolic Rate which accounts for about 60 percent of all calorie expenditure. Basal metabolic rate is the amount of energy or calories our body consumes while at rest. Basal metabolic rate varies according to a number of genetic and physiological factors, including our fat-muscle ratio and the amount of physical exercise we take. (2) Our Physical Activity. Typically this accounts for 30 percent of calorie expenditure. (3) Dietary Thermogenesis. This is the calories we burn as we digest food. It accounts for about 10 percent of the total calorie we expend.
For calorie details of 2500 Foods, see Calories in Foods
Calories In Types of Foods