Calorie Deficit Formula:
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The calorie deficit formula calculates the daily calorie intake needed for weight loss by subtracting a deficit from your maintenance calories. A deficit of 500 kcal/day typically results in about 0.5kg (1lb) of weight loss per week.
The calculator uses the calorie deficit formula:
Where:
Explanation: Creating a calorie deficit forces your body to use stored fat for energy, resulting in weight loss over time.
Details: A controlled calorie deficit is the most scientifically proven method for sustainable weight loss. It ensures you lose fat while maintaining muscle mass and proper nutrition.
Tips: Enter your maintenance calories (typically 2000 kcal/day for average UK women) and your desired calorie deficit (500 kcal/day is recommended for steady weight loss).
Q1: What is a safe calorie deficit for weight loss?
A: A deficit of 500 kcal/day is generally safe and sustainable, resulting in about 0.5kg (1lb) weight loss per week.
Q2: How do I know my maintenance calories?
A: Maintenance calories vary by age, weight, height, and activity level. The average UK woman needs about 2000 kcal/day to maintain weight.
Q3: Can I create a larger deficit for faster results?
A: While larger deficits may produce faster initial weight loss, they're harder to maintain and may lead to muscle loss and nutritional deficiencies.
Q4: Should I combine calorie deficit with exercise?
A: Yes, combining moderate calorie reduction with regular exercise is the most effective approach for sustainable weight loss and overall health.
Q5: How often should I recalculate my calorie needs?
A: Reassess your calorie needs every 4-6 weeks or after significant weight loss (5kg or more) as your maintenance calories will decrease.