[Zoe Wilson]

Statistics tell us that you should expect to lose approximately 60% of your excess body weight (EBW) after a sleeve gastrectomy. Studies also tell us that this weight loss is well maintained for at least 5 years after surgery with the average weight loss at 5 years being more than 50% EBW.

Excess body weight is the amount of weight that you have that is above what you would be if at a BMI of 25. So you need to work out what weight you would be at a BMI of 25, then minus that weight from your current weight. (Use this BMI calculator to work out the weight for your height at a BMI of 25. Use the higher number in the line that says “Based on the healthy BMI recommendation…”)

Then, once you have your excess body weight, you need to work out 60% of that.

So, (Current weight – Weight at BMI 25) x 0.6 = Estimated weight loss after surgery.

Keep in mind that 60% is an average. There are people who lose less and some that lose more, even getting back under a BMI of 25 in some cases. Ultimately, success from a sleeve gastrectomy comes from setting the proper expectations and making a decision and effort to change your habits.

If you’d like more information on why your weight loss may be more or less than the 60% EBW calculation, check out my post on the topic.

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