How Much Weight Do People Lose With a Gastric Sleeve?

On average, gastric sleeve patients lose 60 to 70 per cent of their excess weight within the first 12 to 18 months. As a practical example, someone carrying 50 kilograms of excess weight would typically lose around 30 to 35 kilograms in that period.
Most Weight Loss Happens in the First 12 to 18 Months
The gastric sleeve, also called a sleeve gastrectomy or vertical sleeve gastrectomy (VSG), reduces the stomach from around 1.5 litres to roughly 150 to 250 millilitres. Because the stomach is much smaller, a small meal leaves you genuinely full. The part of the stomach that is removed also produces much of the hormone that drives hunger, so the constant urge to eat tends to reduce rather than having to be fought. Most of the weight loss occurs within those first 12 to 18 months.
Long Term Results Depend on Support Beyond the Operation
Individual results vary, and a small number of patients regain some weight later. Long term success depends on the eating habits and lifestyle built with a dietitian, psychologist and exercise professional, all part of the comprehensive follow up program at LapSurgery Australia. Beyond weight itself, conditions such as type 2 diabetes, sleep apnoea, high blood pressure and joint pain often improve or resolve after surgery. These results are not guaranteed and differ from person to person.
There Is No Single Monthly Figure, and Here Is Why
Related searches often ask about weight loss per month after a gastric sleeve. Our source material does not give a reliable monthly breakdown because the rate of loss varies with starting weight, individual health, and how closely the follow up program is followed. If you want to understand what a realistic timeline might look like for your situation, our team can talk that through with you.
More detail on how the procedure works and what to expect is on our gastric sleeve page.
If you are considering your options, call us on (03) 9760 2777 or request an appointment through our website.