1. What is the Fat Loss Equation?

The fat loss equation estimates how much body fat you can lose based on your daily caloric deficit over a period of time. It's based on the principle that 1 kg of body fat contains approximately 7,700 kcal of energy.

2. How Does the Calculator Work?

The calculator uses the fat loss equation:

Where:

• \( deficit \) — Daily caloric deficit (kcal/day)
• \( days \) — Time period (days)
• \( 7700 \) — Energy content of 1 kg body fat (kcal)

Explanation: The equation calculates how much fat you'll lose by multiplying your daily deficit by the number of days, then dividing by the energy content of body fat.

3. Importance of Caloric Deficit

Details: For men over 40, maintaining a moderate caloric deficit is crucial for sustainable fat loss while preserving muscle mass and metabolic health.

4. Using the Calculator

Tips: Enter your daily caloric deficit (typically 300-500 kcal/day for sustainable loss) and the time period in days. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why is this calculator specific for men over 40?
A: Men over 40 typically have different metabolic rates and hormonal profiles that affect fat loss compared to younger men.

Q2: Is 7,700 kcal really equal to 1 kg of fat?
A: This is an approximation - actual fat tissue contains about 87% lipids, so 1 kg is roughly 7,700 kcal.

Q3: Why might my actual fat loss differ?
A: Water retention, muscle gain/loss, metabolic adaptation, and measurement errors can all affect results.

Q4: What's a safe deficit for men over 40?
A: Generally 300-500 kcal/day deficit is recommended to preserve muscle mass and energy levels.

Q5: Should I adjust protein intake during a deficit?
A: Yes, higher protein intake (1.6-2.2g/kg body weight) helps preserve muscle during fat loss.