1. What is the Calorie Balance Equation?

The calorie balance equation calculates net calories by subtracting calories burned from calories consumed. This fundamental principle determines weight loss (negative balance), weight gain (positive balance), or weight maintenance (neutral balance).

2. How Does the Calculator Work?

The calculator uses the simple equation:

Where:

• \( food\_calories \) — Total calories consumed from food (kcal)
• \( burned \) — Calories burned through activity and basal metabolism (kcal)

Explanation: A negative result indicates calorie deficit (weight loss), while a positive result indicates calorie surplus (weight gain).

3. Importance of Calorie Tracking

Details: Tracking calorie balance helps manage weight effectively. Approximately 3,500 kcal deficit equals 1 pound (0.45 kg) of fat loss.

4. Using the Calculator

Tips: Enter total food calories consumed and estimated calories burned. Use food tracking apps for accurate consumption data and activity trackers for burned calories.

5. Frequently Asked Questions (FAQ)

Q1: How accurate are calorie estimates?
A: Food calorie estimates are typically ±20% accurate. Burned calories can vary ±25% based on individual metabolism and activity intensity.

Q2: What's a safe calorie deficit for weight loss?
A: Generally 300-500 kcal/day deficit for gradual weight loss (0.5-1 lb/week). Extreme deficits can be unhealthy.

Q3: Do all calories affect weight equally?
A: While calorie balance determines weight change, nutrient composition affects satiety, metabolism, and body composition differently.

Q4: Should I include basal metabolic rate in calories burned?
A: Yes, total calories burned includes both activity calories and resting metabolic rate for accurate calculations.

Q5: How often should I recalculate my needs?
A: Reassess every 5-10 lbs lost, as calorie needs decrease with lower body weight.