Calculation Formulas:
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The Calorie Deficit And Protein Calculator helps determine your daily calorie deficit for weight management and optimal protein intake for muscle maintenance and growth based on your body weight.
The calculator uses two simple formulas:
Where:
Explanation: The calorie deficit calculation helps determine how many calories you're under your maintenance level, while the protein calculation provides the optimal daily protein intake for muscle support.
Details: Maintaining an appropriate calorie deficit is crucial for sustainable weight loss, while adequate protein intake helps preserve muscle mass, supports recovery, and promotes satiety during calorie restriction.
Tips: Enter your TDEE (Total Daily Energy Expenditure), daily calorie intake, and current body weight in kilograms. All values must be positive numbers for accurate calculations.
Q1: What is a healthy calorie deficit?
A: A deficit of 300-500 kcal/day is generally recommended for sustainable weight loss of 0.5-1 kg per week.
Q2: Why 1.6g protein per kg of body weight?
A: Research shows that 1.6g/kg is optimal for muscle protein synthesis in active individuals, though needs may vary based on activity level and goals.
Q3: How do I calculate my TDEE?
A: TDEE can be estimated using online calculators that consider your age, gender, weight, height, and activity level, or through metabolic testing.
Q4: Can protein needs vary?
A: Yes, protein requirements may increase to 2.0-2.2g/kg for athletes in intense training or during significant calorie deficits.
Q5: Is a larger deficit better for faster weight loss?
A: Very large deficits can lead to muscle loss, metabolic adaptation, and nutrient deficiencies. Moderate deficits are more sustainable long-term.