One of the most common questions I hear is “How much weight will I lose after bariatric surgery?” The honest answer is that weight loss is measured in percent of excess weight lost, not a specific number on the scale. With gastric sleeve, most patients can expect to lose about 50–70% of their excess weight over 12 to 18 months. With gastric bypass, that number is often a bit higher, around 60–80% of excess weight, depending on individual factors. What matters just as much as the surgery itself i