The Mifflin-St Jeor equation is used to estimate what?

The Mifflin-St Jeor equation is used to estimate what?

• A. Basal metabolic rate
• B. Total energy expenditure
• C. Body mass index
• D. Resting energy expenditure

Answer: (D)

The Mifflin-St Jeor equation estimates resting energy expenditure, the amount of calories the body needs at rest to maintain vital functions like breathing and circulation. It uses weight, height, age, and sex to calculate this baseline energy need, which researchers and clinicians use as the starting point for planning daily energy intake. It’s different from basal metabolic rate in strict terms, though they’re closely related; BMR is measured under specific, more restrictive conditions, while resting energy expenditure is what you typically estimate for daily nutrition planning. Total energy expenditure would include activity and other factors, which this equation does not account for unless you apply an activity factor afterward. Body mass index is simply a weight-for-height measure, not an energy need estimate.

The Mifflin-St Jeor equation estimates resting energy expenditure, the amount of calories the body needs at rest to maintain vital functions like breathing and circulation. It uses weight, height, age, and sex to calculate this baseline energy need, which researchers and clinicians use as the starting point for planning daily energy intake. It’s different from basal metabolic rate in strict terms, though they’re closely related; BMR is measured under specific, more restrictive conditions, while resting energy expenditure is what you typically estimate for daily nutrition planning. Total energy expenditure would include activity and other factors, which this equation does not account for unless you apply an activity factor afterward. Body mass index is simply a weight-for-height measure, not an energy need estimate.