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Mifflin-St Jeor Equation for Men:
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The Mifflin-St Jeor equation is a widely used formula to estimate basal metabolic rate (BMR), which represents the number of calories your body needs at rest to maintain basic physiological functions. It is considered one of the most accurate BMR equations.
The calculator uses the Mifflin-St Jeor equation for men:
Where:
Explanation: The equation calculates the basal metabolic rate based on an individual's weight, height, and age, providing an estimate of daily calorie needs at complete rest.
Details: Knowing your BMR is essential for creating effective weight management plans, determining daily calorie needs, and establishing appropriate nutrition strategies for health and fitness goals.
Tips: Enter weight in kilograms, height in centimeters, and age in years. All values must be valid (weight > 0, height > 0, age between 1-120).
Q1: Why use Mifflin-St Jeor equation?
A: The Mifflin-St Jeor equation is considered one of the most accurate BMR prediction formulas, with studies showing it to be more reliable than older equations like Harris-Benedict.
Q2: What is a normal BMR range for men?
A: Typical BMR for adult men ranges from 1,600-2,000 kcal/day, though this varies based on body composition, age, and other individual factors.
Q3: How often should BMR be calculated?
A: BMR should be recalculated whenever there are significant changes in weight, body composition, or age (approximately every 6-12 months).
Q4: Are there limitations to this equation?
A: The equation may be less accurate for extremely muscular individuals, those with very high or very low body fat percentages, and certain medical conditions affecting metabolism.
Q5: How does BMR relate to total daily energy expenditure?
A: BMR represents about 60-75% of total daily energy expenditure. To calculate total needs, multiply BMR by an activity factor (1.2 for sedentary to 1.9 for very active).