How Much Can I Lose?
Gastric Lap-Band Weight Loss

There's no simple answer to the question, "How much weight can I lose with gastric lap-band weight loss surgery?"

Much of the answer depends on YOU and your commitment to a new way of eating and a new active lifestyle.

However, here are some statistics to help give you a general idea of what to expect.

Gastric Lap-Band Weight Loss: United States Clinical Study

The average weight loss was approximately 36%-38% of excess weight, 2 and 3 years after surgery.

Here's a summary of the study results:

There's also research showing:

  • Patients typically lose 50-60% of their excess weight* over 5 years
  • Patients lose 62% + - 20.9% of their excess weight* at 36 months

* Let's get on the same page as to what "excess weight" means in weight loss literature. Excess weight is defined as the difference between what you currently weigh and your estimated ideal weight as defined by a standard index.


A 5'7" woman weighs 255 pounds. According to "ht/wt charts" her ideal weight is 135 pounds. She therefore has 120 pounds of "excess weight." Losing 50-60% of her excess weight in 5 years would translate to losing 60-72 pounds in 5 years.

You don't need to experience HUGE amounts of weight loss to experience improvements in health. In clinical studies, improvements in weight related health conditions are seen as early as 1 year after surgery.

Rate of Gastric Lap-Band Weight Loss

In the first year after your weight loss surgery, losing 2-3 pounds per week is possible, but 1 pound per week is more likely.

You'll likely lose the most in the first year after surgery and can expect the rate of loss to slow down after that.

How does gastric lap-band weight loss compare to gastric bypass weight loss?

Weight loss is usually slower with gastric band weight loss surgery than with gastric bypass. However, Lap-Banders tend to "catch up" to gastric bypass patients after 3 years.

In other words, gastric band patients start off slower, but without having to undergo such major surgery, they eventually catch up to the amounts of weight lost by bypass patients!

Read more on Gastric Lap-Band vs Gastric Bypass

Bottom line

Some people lose more than others.

Expect to lose slowly... average of 1-2 pounds per week. Expect weight loss to slow after the first year.

Enjoy weight loss amounts similar to gastric bypass patients a few years post surgery.

Don't forget gastric banding surgery is simply a TOOL and requires a serious commitment to a new healthy lifestyle. (Gastric lap-band weight loss also depends on proper follow up fills.)

Surgery is only the beginning of your weight loss journey. There is no guarantee you'll lose weight or ever reach your ideal weight.

More ABOUT Gastric Banding Surgery

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