Why Weight Stalls Happen
Almost every gastric sleeve patient hits a stall at some point – usually between weeks two and seven post-op, though they can happen at any stage. It is one of the most common things people message us about, and our honest answer is always the same: stalls are normal, they are not a sign that something has gone wrong, and they always end.
The biology behind them is straightforward. In the days immediately after surgery, your calorie intake drops dramatically and your body burns fat rapidly to compensate. After a few weeks, your metabolism makes a protective adjustment – it slows slightly to conserve energy, in response to what it interprets as an extreme reduction in food supply. That is when the scales go quiet. What is actually happening underneath is that your body is recalibrating: shifting fluid, repairing tissue, and adapting to a new normal. Progress continues even when the number on the scale does not.
When we hit our first stall around week three, it felt like everything had stopped. Looking back, it was just the first time we experienced what would become a familiar pattern – a plateau of a week or two, followed by a noticeable drop. Over two years on, we have come to see stalls as part of the rhythm, not a disruption to it.
What Our Stalls Actually Looked Like
For both of us, the pattern has been consistent throughout: the scale holds steady for one to two weeks, sometimes longer, and then releases several pounds at once. It is as if the body pauses, consolidates what has happened, and then catches up with itself.
During our first year, when the losses were faster and more dramatic, the stalls were more noticeable and more frustrating. James went from losing several pounds a week in months one and two to seeing nothing move for nearly three weeks in month three. Kirsten had a similar experience around the same time, compounded by the fact that Crohn’s flares make her weight fluctuate anyway, which made it harder to read clearly.
The thing we both wish we had known earlier: the scale is one data point, not the whole picture. In almost every stall we have had, our tape measurements kept changing even when the weight did not. Inches were still coming off thighs, waist, and arms throughout periods where the scale showed no movement at all.
What We Do During a Stall
There is no single trick that reliably breaks a stall – and we are wary of advice that suggests otherwise. What we have found more useful is having a consistent approach that keeps us on track regardless of what the scale is doing.
The first thing we do is check our protein intake. It is easy to let it slip, especially when you are eating small amounts and relying on food rather than shakes. Protein supports muscle preservation during weight loss, and inadequate protein is one of the more common reasons a stall extends longer than it should. If we have been light on protein for a week or two, getting back to hitting our daily target consistently tends to help.
The second is hydration. We aim for at least two litres of fluid per day, and in practice that means being deliberate about it – drinking between meals rather than with them, keeping water within reach, and not letting a busy day result in very little fluid intake.
The third is movement. We do not mean punishing exercise; we mean not being sedentary. A longer walk, some light resistance work, anything that keeps the body active without stressing a system that is already under demand. Activity supports circulation, digestion, and metabolism – all relevant to getting things moving again.
Beyond those three, we have found that the most important thing is patience. Cutting calories further during a stall tends to make things worse, not better. Your body does not need to be punished – it needs consistency.
The Mistakes We Made
We made most of the common ones. James weighed himself every morning in the first few months, which created unnecessary anxiety and made every quiet week feel like a crisis. Kirsten compared her pace to James’ throughout the first year, even though their surgeries, bodies, and underlying health conditions are completely different – he had sleep apnoea and was nearly 30 stone pre-op; she had Crohn’s disease and a different starting point entirely.
We also both made the mistake of interpreting a stall as permission to be less strict. The logic was: if the scale is not moving anyway, what difference does it make? The difference is that consistency in the weeks following a stall determines how quickly and how well the next phase of loss goes.
The one we see most often in others – and genuinely understand – is cutting calories dramatically to try to force the scale to move. In the short term it rarely works; in the longer term it makes the stall worse by slowing metabolism further and risks nutritional deficiency, which we know about from personal experience having gone through a deficiency crisis ourselves at month eleven.
Progress Photos and Measurements
We cannot recommend these strongly enough as a counterweight to the scale. When the number does not move, it is easy to feel like nothing is changing – but that is almost never true.
We take photos roughly every six to eight weeks and measurements every two weeks. The photos in particular have been one of the most motivating records of the whole journey. James saw visible changes in his face, chest, and waist during a three-week stall that the scale had completely failed to capture. Looking back across eighteen months of photos makes it impossible to argue that progress stalled – it just was not always visible in real time.
If you are not already doing this, start now. The retrospective view is one of the most powerful tools available to you.
Two Years On: How We Think About Stalls Now
More than two years after surgery, stalls happen less frequently and feel less significant than they used to. We are in maintenance rather than active loss now, so the scale naturally moves less. When it does hold steady for a couple of weeks, it mostly reads as the body doing what it is supposed to do.
What has changed is our relationship with the scale itself. It no longer has the same emotional hold it did in the first year. We check it occasionally, we note the number, and we move on. The habits – protein, hydration, movement, sleep – matter far more than any single weigh-in result.
If you are in a stall right now, the most useful thing we can tell you is that it will end. Stay consistent, keep your protein up, keep moving, and do not let a quiet week on the scale convince you that you are failing. You are not.
Sources
NICE CG189 – Obesity: identification, assessment and management (National Institute for Health and Care Excellence)
BOMSS (British Obesity and Metabolic Surgery Society) – Guidelines on perioperative and postoperative biochemical monitoring and micronutrient replacement for patients undergoing bariatric surgery
Parrott J et al. – American Society for Metabolic and Bariatric Surgery Integrated Health Nutritional Guidelines for the Surgical Weight Loss Patient 2016 Update (Surgery for Obesity and Related Diseases, 2017)
About this content
This blog is written by James and Kirsten, a couple from the UK who had gastric sleeve surgery together in March 2024.
We started this blog because we couldn't find any sources of content that details before surgery, the surgery and then life post surgery - so we decided to write one ourselves.
Everything on this site is based on our own experience and the research we have done along the way. It is not medical advice. Gastric sleeve surgery is a serious procedure and every patient's journey is different. Please always consult your own bariatric team or GP before making any decisions about your health or treatment.
Some posts on this site may contain featured or sponsored content, or affiliate links. Where this is the case, it will always be clearly stated at the top of the article. Our opinions are always our own.
Publish Date: 26 July 2024 | Last Reviewed: 7 June 2026 | Next Planned Review: 7 December 2027