Gastric Sleeve Weight Loss Timeline

Gastric sleeve surgery is an effective tool for obese individuals to lose weight and keep it off long-term. Studies have been performed to depict both short-term and long-term success rates after gastric sleeve surgery.

Most gastric sleeve patients lose an average of 65-70% of their excess weight (EW) in a year – an average of 2-3 pounds per week. Patients lost up to 75% of their EW in two years. Resolution of comorbidities occurs in just one to two years following weight loss surgery.

One Swiss study learned that patients kept off at least 57% of their excess weight five years following their surgery. Long-term success shows significant improvements in the risk of stroke or heart disease and a decrease in countless obesity-related medical conditions.

Gastric Sleeve Surgery Weight Loss Chart - 3, 6, 12 month post-op

Weight Loss Percentage After Gastric Sleeve

Your weight at each stage of your journey depends on several factors, such as surgeon’s skills, starting weight, your diet or health-related issues. However, here is an average sleeve Weight Loss Timeline at 3, 6, 9, 12 and 18 months milestones:

Expected Weight Loss in 3 Months

You will follow the post-op diet and gradually transition from liquid to solid food. As a result, you can expect a quick surge in your weight loss in the first 3 months following surgery. You could lose an average of 25-35%* excess weight – between 30 and 40 pounds.

Expected Weight Loss in 6 Months

At this stage of your journey, your weight loss continues but at a lower pace.  In 6 months after the surgery, you will lose an average of 45-55%* of your body excess weight – an average of  one to two pounds per week.

Expected Weight Loss in 1 Year

You should be getting close to your goal weight in one year after sleeve surgery, of course not everyone loses all the excess weight in this stage. You will lose an average of 65-70%* of your body excess weight.

Expected Weight Loss in 18 Months

Expect your weight loss to level off in 1.5 years after undergoing the sleeve procedure. In general, you can expect to lose 70-80%* or more of your body excess weight in 18 months.

Long-Term Expected Weight Loss

The U.S. National Library of Medicine Study looked at different weight loss procedures to see how all of them compare regarding weight loss. The study found that when patients were followed up within 1, 2 and three years after surgery, those who had gastric sleeve surgery had more of a considered long-term weight loss chart than other surgery types.

In the gastric sleeve weight loss chart, just 6.3% of the patients had any complications at all. 60% of the patients studied had experienced major weight loss in just one to two years (18 months) following their surgery.

Another study, the Surgery for Obesity and Related Diseases Study, looked at how successful gastric sleeve surgery was at helping patients keep weight off for an extended period. It looked at the results of patients who had the surgery five years ago. Things such as total weight loss, how quickly weight was lost, quality of life and complications were all evaluated.

In order to determine the amount of weight you will lose after gastric sleeve surgery, use our Weight Loss Calculator. Just remember losing weight at an accelerated rate is not always a good thing. Losing weight too quickly can cause loose skin or stretch marks.

Also: Will The Stomach Stretch After Gastric Sleeve Surgery?

Gastric Sleeve Surgery - Expected weight loss

Mexico Gastric Sleeve Weight Loss

At Mexico Bariatric Center®, we see patients more often to lose 80% to 100% of their excess weight within the first two years after surgery. Our data show a strong correlation between the amount of excess weight loss with following the post-op diet, exercise routine, and healthy lifestyle habits.

We also see significant improvements and/or remission in comorbidities such as type II diabetes, high blood pressure, high cholesterol, and obstructive sleep apnea.calculate-weight-loss


*Everyone loses weight at there own pace. Results vary and may not be typical.

Our gastric sleeve prices start at $4,595. Be our next success story!

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