1. What Is This Weight Loss Calculator?

This calculator helps women over 40 determine their optimal daily calorie intake for weight loss by accounting for basal metabolic rate (BMR), activity level, and desired calorie deficit.

2. How Does The Calculator Work?

The calculator uses the formula:

Where:

• \( BMR \) — Basal Metabolic Rate (calories your body needs at complete rest)
• \( Activity\ Factor \) — Multiplier for your activity level (1.2-2.5)
• \( Deficit \) — Calorie reduction for weight loss (typically 300-500 calories/day)

Explanation: The equation calculates your total daily energy expenditure (TDEE) then subtracts your desired deficit to create weight loss.

3. Importance For Women Over 40

Details: Metabolism slows with age, making weight loss more challenging. This calculator accounts for hormonal changes and decreased muscle mass common after 40.

4. Using The Calculator

Tips:

• Calculate your BMR using a Harris-Benedict or Mifflin-St Jeor formula
• Choose activity factor: 1.2 (sedentary) to 2.5 (very active)
• Start with 300 calorie deficit, increase gradually if needed
• Never go below 1200 calories/day without medical supervision

5. Frequently Asked Questions (FAQ)

Q1: Why is weight loss harder after 40?
A: Hormonal changes (especially menopause), decreased muscle mass, and slower metabolism all contribute.

Q2: What's a safe calorie deficit for women over 40?
A: Start with 250-300 calories/day deficit. Larger deficits may trigger metabolic adaptation.

Q3: How should activity factors be adjusted for age?
A: Women over 40 may need to reduce activity factors slightly (by 0.1-0.2) to account for decreased NEAT (non-exercise activity thermogenesis).

Q4: Should protein intake be increased?
A: Yes, women over 40 should aim for 1.6-2.2g protein per kg body weight to preserve muscle mass.

Q5: How often should calculations be adjusted?
A: Recalculate every 4-6 weeks or after significant weight loss (5+ lbs) to account for metabolic changes.