Gastric sleeve and gastric bypass surgery can provide patients the ability to lose weight gradually and in a healthy way while helping them maintain their weight in the future. All of these benefits of bariatric surgery are proven effective long-term. Many patients report keeping the weight they lost off 10–15 years following their procedure.

So the question is, what is the average weight loss from the first month to the first year after bariatric surgery?

We polled our former patients to find out just how many pounds they lost. Below are results of % Excess Weight Loss (%EWL) for gastric sleeve surgery (vertical sleeve gastrectomy), RNY gastric bypass (Roux-en-Y), and LAP-BAND to gastric sleeve revision.

Average Weight Loss - Gastric Sleeve, RNY Gastric Bypass, Lap Band to Sleeve

Gastric Sleeve Expected Weight Loss

Gastric sleeve patients are expected to lose between 60 and 70 percent of their excess body weight within 12 to 18 months after surgery.[1]

In total, roughly 90% of  Mexico Bariatric Center patients who underwent vertical sleeve gastrectomy lost between 48% to 92% of excess weight (%EWL) within the first 12 months post-surgery. Patients on average saw 65% to 75% excess weight loss in the first after undergoing gastric sleeve surgery in Mexico.

Learn more in our Gastric Sleeve Weight Loss Timeline

12-Month Weight Loss Results

TimeWeight Loss
1 Month22.5 lbs.
3 Month41.53 lbs.
6 Month66.25 lbs.
12 Month84.5 lbs

Gastric Bypass Expected Weight Loss

In the Roux-en-Y Gastric Bypass Surgery, the average weight loss is typically between 65% to 72% after one-year post-surgery. This is slightly higher than gastric sleeve due to the malabsorptive component in the bypass procedure.

In total, nearly 78% of our RNY gastric bypass patients lost between 38% to 94% of excess weight (%EWL) in the first 12 months following surgery.[2] Out of the participants in our case study, Mexico Bariatric Center patients saw an average of 64% to 71% excess weight loss in the first year post-op gastric bypass in Mexico.

Learn more in our Gastric Sleeve vs Gastric Bypass

12-Month Weight Loss Results

TimeWeight Loss
1 Month18.4 lbs.
3 Month50.75 lbs.
6 Month73.67 lbs.
12 Month106.52 lbs

LAP BAND to Sleeve Revision Expected Weight Loss

LAP BAND to gastric sleeve revision patients lost between 25% and 65% of their excess body weight within 12 months. Mexico Bariatric Center patients saw an average of 55% to 80% excess weight loss in the first after gastric band revision to sleeve.

Mexico Bariatric Center: Post-Surgery Survey

We polled our former patients via e-mail campaign and Facebook to discover some important points about Mexico Bariatric Center.

We polled our former patients via e-mail campaign and Facebook to discover some important stats about Mexico Bariatric Center.

During the first year, many gastric sleeve patients will experience considerable weight loss. Most patients can expect to lose 65% of their excess weight with this surgery. Where are actual stats on the average amount lost for 1st Month, 3rd Month, 6th Month and 1 Year following surgery?

Time

Gastric Sleeve

Gastric Bypass

BAND to Sleeve

1 Month22.47 lbs.18.4 lbs.21 lbs.
3 Month41.52 lbs.50.75 lbs.39.34 lbs.
6 Month66.26 lbs.73.67 lbs.105 lbs.

Average Weight Loss After 1 Month

The most common question we face is, “just how much weight loss people can expect in their first-month post-surgery?” We’ve polled our patients to discover just how much they’re losing. This graph represents the total amount lost for all surgeries underwent with Mexico Bariatric Center. (Median: 20 lbs. – Average: 21.95 lbs.)

Gastric Sleeve (1 Month)

22 Pounds (lbs.)

Gastric Bypass (1 Month)

18 Pounds (lbs.)
Gastric Sleeve vs. Gastric Bypass After 1 Month

Average Weight Loss After 3 Months

This graph represents 3 Months After all surgery types including Gastric Sleeve, Gastric Bypass, Duodenal Switch and Revisional Surgery. This chart represents a real basis for people looking to see just how much weight they can expect to lose. (Median: 40 lbs. – Average 42.25 lbs.)

Gastric Sleeve (3 Month)

41 Pounds (lbs.)

Gastric Bypass (3 Month)

51 Pounds (lbs.)
Gastric Sleeve vs. Gastric Bypass After 3 Months

Average Weight Loss After 6 Months

Six months post-op is a barometer of bariatric surgery success. All bariatric surgeries are compared based on this stat. (Median:64 lbs. – Average: 65.5 lbs.)

Gastric Sleeve (6 Month)

66 Pounds (lbs.)

Gastric Bypass (6 Month)

74 Pounds (lbs.)
Gastric Sleeve vs. Gastric Bypass After 6 Months

Average Weight Loss After 12 Months (1 Year)

After a year of weight loss surgery, Mexico Bariatric Centers’ patient have reached a lot of weight loss success. Below are average weight loss and typical weight loss results after one year. (Medium: 82.5 lbs. – Average: 83.5 lbs.)

Gastric Sleeve (12 Month)

84 Pounds (lbs.)

Gastric Bypass (12 Month)

98 Pounds (lbs.)
Gastric Sleeve vs. Gastric Bypass After 12 Months

Would You Recommend Mexico Bariatric Center?

We asked our prior gastric sleeve and gastric bypass patients if they’d recommend Mexico Bariatric Center to a Friend. The answers even surprised us, over 97% of respondents said they would recommend MBC to a friend. Not only, did we get a lot of positive responses, we also received a lot of useful feedback to improve our patient care and communication.

Want to learn more? Visit our new patient orientation page where we walk you through the new patient process. And see more inspirational success stories by clicking here.

Or you can call us at 1-855-768-7247

Would You Recommend Mexico Bariatric Center to a Friend