Calorie Formula:
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This calculator estimates daily calorie needs for women over 40, accounting for metabolic changes that occur with age. It provides a personalized estimate based on weight, height, age, and activity level.
The calculator uses the formula:
Where:
Explanation: The formula calculates basal metabolic rate adjusted for activity level, with a -300 kcal adjustment for metabolic slowdown in women over 40.
Details: Accurate calorie estimation is crucial for weight management, maintaining energy balance, and supporting overall health in women over 40 who experience metabolic changes.
Tips: Enter weight in kg, height in cm, age (must be 40+), and select appropriate activity factor. All values must be valid positive numbers.
Q1: Why the -300 adjustment for women over 40?
A: Metabolism typically slows by about 100-300 calories per day after age 40 due to hormonal changes and decreased muscle mass.
Q2: What activity factor should I choose?
A: Sedentary (office job), Lightly active (light exercise 1-3 days/week), Moderately active (moderate exercise 3-5 days/week), Very active (hard exercise 6-7 days/week), Extra active (very hard exercise and physical job).
Q3: Is this calculator accurate for weight loss?
A: It provides a maintenance calorie estimate. For weight loss, subtract 300-500 calories, but consult a healthcare provider for personalized advice.
Q4: Should I adjust calories based on health conditions?
A: Yes, certain medical conditions may require calorie adjustments. Always consult with a healthcare professional for personalized nutritional guidance.
Q5: How often should I recalculate my calorie needs?
A: Recalculate every 3-6 months or with significant weight changes (±5kg) or activity level changes.