harris benedict equation

The Harris Benedict Equation

What is the Harris Benedict Equation?

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Learn More About the Harris Benedict Calculation

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The Harris Benedict Calculation is a formula that uses your BMR and then applies an activity factor to determine your total daily energy expenditure (calories). The only factor omitted by the Harris Benedict Equation is lean body mass. Remember, leaner bodies need more calories than less lean ones. Therefore, this equation will be very accurate in all but the very muscular (will underestimate calorie needs) and the very fat (will over-estimate calorie needs). Here are the activity levels to perform the harris bnedict calculation:

Little/no exercise: Calorie-Calculation = BMR x 1.2

Light exercise/sports 1-3 days/week: Calorie- Calculation = BMR x 1.375

Moderate exercise/sports 3-5 days/week: Calorie-Calculation = BMR x 1.55

Hard exercise/sports 6-7 days/week: Calorie-Calculation = BMR x 1.725

Very hard exercise/sports & physical job: Calorie-Calculation = BMR x 1.9