Weight Loss Formula:
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The water fasting weight loss calculation estimates potential weight loss during a water fast based on NHS guidelines. It uses your basal metabolic rate (BMR) and fasting duration to predict weight reduction.
The calculator uses the NHS formula:
Where:
Explanation: The formula calculates weight loss based on the principle that a deficit of 3500 calories results in approximately 1 pound of weight loss.
Details: Understanding potential weight loss during water fasting helps set realistic expectations and plan fasting periods safely under medical supervision.
Tips: Enter your BMR in calories per day and the planned fasting duration in days. Both values must be positive numbers.
Q1: Is water fasting safe for weight loss?
A: Water fasting should only be undertaken with medical supervision as it can have serious health risks if not properly managed.
Q2: How accurate is this calculation?
A: This provides an estimate based on calorie deficit principles. Actual results may vary based on individual metabolism and other factors.
Q3: Where does the 3500 calories per pound come from?
A: This is a widely accepted estimate that 3500 calories equals approximately 1 pound of body weight, based on NHS guidelines.
Q4: Should I use this calculator for extended fasting?
A: Extended fasting requires medical supervision. This calculator provides estimates but should not replace professional medical advice.
Q5: How do I calculate my BMR?
A: BMR can be estimated using various formulas (Harris-Benedict, Mifflin-St Jeor) or measured through medical tests. Consult a healthcare provider for accurate BMR measurement.