Understanding Your Metabolism


Metabolism is the amount of calories your body burns to maintain itself. It is affected by your body composition (i.e., muscle uses more calories to maintain itself than fat). If you have two women who weigh exactly the same, the woman with a greater percentage of muscle (and lower percentage of body fat) will have a higher metabolism than the woman who is less muscular. Appropriate exercise will help you create a body with more muscle and less fat, resulting in a higher metabolism and a body that uses more calories every day just to sustain itself.


Calculating Your Daily Calorie Needs:

Discovering how many calories your body uses in a day, known as your “Daily Energy Expenditure”, unlocks the mystery behind weight loss.

To calculate how many calories your body needs in a day, you calculate your basal metabolic rate (the number of calories your body burns while at rest), then determine your daily calorie needs to maintain your current weight.

Metabolism — The amount of energy (calories) your body burns to maintain itself. Whether you are eating, drinking, sleeping, walking, cleaning or doing other activities, your body is constantly burning calories to keep you going.

Basal Metabolic Rate (BMR) — The number of calories per day your body burns while at rest, regardless of exercise. It changes with age, weight, height and gender.

Daily Energy Expenditure (DEE) — The number of calories your body needs in a day to maintain your current body weight, based on your age, weight, height, gender and activity level.

Daily Caloric Intake — The number of calories you consume in a day by eating and drinking.

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