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Weight loss timeline · Sleeve gastrectomy
Most people lose about 25% to 30% of their total body weight within two years of a gastric sleeve. How much you lose depends on your starting weight, eating habits, activity and follow-up care. Use the calculator for your own estimate, then see what large studies show over time.
Estimates from Mayo Clinic and large studies. Results vary.
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Your estimate
Move the sliders to your height and weight to see your BMI and an estimate of how much you could lose in the first two years.
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The estimate uses 25% to 30% of total body weight within two years, from Mayo Clinic. It is not a medical assessment. Results vary. Get my free surgeon reviewWeight loss timeline
Weight loss is fastest in the first year, then levels off. Some people regain part of the weight over time. Studies measure it in two ways: total body weight lost, and excess weight lost above a healthy weight.
| Average weight loss | Study | |
|---|---|---|
| 1 year | 25.2% of total body weight | PCORnet study of 29,693 sleeve patients |
| 2 years | About 25% to 30% of total body weight for most people | Mayo Clinic |
| 5 years | 18.8% of total body weight | PCORnet study |
| 5 years | 61.1% of excess BMI | SM-BOSS randomized trial |
| 10 years | 43.5% of excess weight (median) | SLEEVEPASS randomized trial |
For a 260-pound person, 25% to 30% of body weight is about 65 to 78 pounds. The studies had different patients, so their figures aren’t directly comparable.
Beyond the scale
Losing a large amount of weight can improve many conditions linked to obesity. Some people are able to reduce or stop medication, under their doctor’s care.
Blood sugar often improves, and some people reduce or stop diabetes medication.
Lower blood pressure can reduce the risk of heart disease and stroke.
Cholesterol levels often improve with weight loss.
Weight loss can reduce the severity of sleep apnea and improve sleep.
Sleeve or bypass? In the PCORnet study, average weight loss at 5 years was 25.5% after gastric bypass and 18.8% after the sleeve. The sleeve doesn’t reroute the intestines, but it can cause or worsen reflux. Gastric bypass.
Am I a candidate?
The 2022 ASMBS and IFSO guidelines recommend bariatric surgery for a BMI of 35 or more, and say it should be considered for a BMI of 30 to 34.9 with a metabolic condition such as type 2 diabetes. A face-to-face or virtual consultation is the best way to know if you’re ready.
Recommended regardless of obesity-related conditions.
Considered when you have a metabolic condition, such as type 2 diabetes.
Diet and exercise haven’t given you lasting results.
You commit to new eating habits, activity, vitamins and follow-up.
Conditions such as depression, anxiety, binge eating or substance use may need treatment first.
Tell your care team honestly about alcohol and drug use.
Keeping it off
Some people don’t lose as much as expected, or regain weight over time. Eating habits, activity, biology and metabolism can all play a part (Mayo Clinic).
Eat small meals and stop when you’re satisfied, not full. Can your stomach stretch?
A balanced diet with lean protein, vegetables, fruit and whole grains. Post-op diet.
Start with light walking and build up as you recover.
Counseling, support groups and regular checkups help you stay on track.
If weight comes back, options include nutrition support, behavior changes, GLP-1 medication and revision surgery, as the ASMBS statement on weight recurrence describes.
Send your health history and our surgeons will review it. Virtual consultations are available.
Renew Bariatrics patients who had the gastric sleeve with each of our four surgeons.
“I feel so much more healthy.”
“I feel amazing, my eating habits have changed for the better, no sodas or sugary drinks no fast food I cook almost every meal! I have energy I’ve picked up new hobbies playing pickleball and working out!”
“Thank you so much! Renew is literally the best decision I've ever made!”
5-star Google reviews. Want to talk with a past patient? Ask your coordinator.
“From talking to Roni Peterson then to Elizabeth the Nutrionists, and finally meeting Dr. Jorge Green who did my surgery. I have lost almost 100 pounds since starting my journey three and half months ago. Still making progress and still receiving support from Renew Bariatrics.”
“From beginning to end, the experience was so worth it. Dr. Green was amazing. He gave me his personal number so if I had any questions, he could answer them. I had zero complications. I have lost 60 pounds in less than 5 months!”
“My PCP said I was pre diabetic and starting to have high blood pressure problems. I wanted to live life and renew myself so I could feel better and look better. I just had my surgery with Dr Perez and he was amazing. Thanks Renew Bariatrics for saving my life.”
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According to Mayo Clinic, most people lose about 25% to 30% of their total body weight within two years. Some lose more and some less.
In the PCORnet study of 29,693 sleeve patients, average weight loss at one year was 25.2% of total body weight.
Many keep most of it off. At five years, average weight loss was 18.8% of total body weight in the PCORnet study and 61.1% of excess BMI in the SM-BOSS trial. Some regain is common.
It estimates 25% to 30% of your current weight over two years, based on Mayo Clinic. It is not a medical assessment.
Options include nutrition support, behavior changes, GLP-1 medication and revision surgery, after a medical evaluation.
Guidelines recommend surgery for a BMI of 35 or more, and say it should be considered for a BMI of 30 to 34.9 with a metabolic condition such as type 2 diabetes.
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