1. What is Weight Loss Percentage Excess?

The Weight Loss Percentage Excess calculates the expected weight loss timeline after gastric bypass surgery, based on the average of 70% excess weight loss achieved within 1 year (12 months) post-surgery.

2. How Does the Calculator Work?

The calculator uses the following equation:

Where:

• 70 — Represents the average maximum percentage of excess weight loss
• months — Time since surgery in months
• 12 — Months in one year (time to reach maximum weight loss)

Explanation: The equation provides a linear projection of weight loss over time, capped at 70% of excess weight after 12 months.

3. Importance of Tracking Weight Loss

Details: Monitoring weight loss percentage helps assess surgical success, set realistic expectations, and identify potential issues requiring medical attention.

4. Using the Calculator

Tips: Enter months since surgery (0-12) and your excess weight in kg. The calculator will show expected percentage and actual weight loss.

5. Frequently Asked Questions (FAQ)

Q1: Is 70% excess weight loss guaranteed?
A: No, this is an average. Individual results vary based on adherence to diet, exercise, and metabolic factors.

Q2: What counts as "excess weight"?
A: Typically calculated as total weight minus ideal body weight for your height and gender.

Q3: Does weight loss continue after 12 months?
A: Most patients reach maximum weight loss by 12-18 months, with some fluctuation thereafter.

Q4: What if I'm losing weight faster or slower?
A: Significant deviations from expected trajectory should be discussed with your bariatric team.

Q5: How accurate is this calculator?
A: It provides general estimates based on population averages, not individual predictions.