Tdee Calculator Nhs Weight Loss

NHS TDEE Equation for Weight Loss:

\[ TDEE = (655.1 + 9.563 \times weight + 1.850 \times height - 4.676 \times age) \times activity\ factor - 500 \]

Weight:

Height:

Age:

years

Activity Factor:

Estimated TDEE for Weight Loss:

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1. What is the NHS TDEE Equation for Weight Loss?

The NHS (National Health Service) TDEE equation estimates Total Daily Energy Expenditure with a 500 kcal deficit for sustainable weight loss. It's based on the Mifflin-St Jeor equation with an activity factor adjustment and calorie reduction for weight management.

2. How Does the Calculator Work?

The calculator uses the NHS TDEE equation for weight loss:

\[ TDEE = (655.1 + 9.563 \times weight + 1.850 \times height - 4.676 \times age) \times activity\ factor - 500 \]

Where:

\( weight \) — Body weight in kilograms (kg)
\( height \) — Height in centimeters (cm)
\( age \) — Age in years
\( activity\ factor \) — Multiplier based on physical activity level
\( 500 \) — Calorie deficit for sustainable weight loss

Explanation: The equation calculates your maintenance calories then subtracts 500 kcal to create a deficit for gradual weight loss of about 0.5kg per week.

3. Importance of TDEE Calculation for Weight Loss

Details: Accurate TDEE calculation is crucial for effective weight management. A 500 kcal daily deficit creates sustainable weight loss without extreme restriction, promoting long-term success and healthy eating habits.

4. Using the Calculator

Tips: Enter your current weight in kg, height in cm, age in years, and select your activity level. Use accurate measurements for best results. The calculated value represents your recommended daily calorie intake for weight loss.

5. Frequently Asked Questions (FAQ)

Q1: Why subtract 500 calories specifically?
A: A 500 kcal daily deficit creates approximately 3500 kcal weekly deficit, which equals about 0.5kg (1lb) of fat loss per week - a safe and sustainable rate.

Q2: How accurate is this calculation?
A: While estimates vary individually, this provides a scientifically-based starting point. Adjust based on your actual weight loss progress over 2-3 weeks.

Q3: Should I eat exactly this amount every day?
A: Use it as a daily average. Some days you might eat slightly more, others slightly less. Weekly consistency matters most.

Q4: When should I recalculate my TDEE?
A: Recalculate every 4-6 weeks or after significant weight loss (5+ kg) as your energy needs decrease with lower body weight.

Q5: Is this suitable for everyone?
A: Consult a healthcare professional before starting any weight loss program, especially if you have medical conditions or need to lose more than 10% of body weight.