Why Lost Weight Comes Back, and How to Stop It
You did the work. Four kilos gone, or ten. Then a few months later the scale is back where it started, and the conclusion feels obvious. You failed.
Ayesha Nasir’s argument in the video below is that this is the wrong conclusion. Lost weight comes back for reasons that are physiological rather than moral, and weight regain is usually not a discipline problem. It is a predictable set of changes inside the body that almost nobody is warned about, and once you know what those changes are, you can plan around them.
You do not only lose fat
Two things come off during weight loss. Fat, which is the goal, and muscle, which is not.
Muscle is expensive for the body to keep. Fat is cheap. Even while you sleep your body is burning calories on thousands of processes, and holding on to muscle is one of the costlier ones. Holding on to fat costs very little.
So when muscle goes, your metabolic rate falls further than your weight alone would explain. Ayesha puts it bluntly in the video. You can reach 54 kg and end up with the calorie requirement of someone who weighs 49 kg, because the ratio of muscle to fat inside you has changed. The scale improved. The engine got smaller.
The second cost is that visible ageing speeds up. Muscle loss shows on the face and the arms long before it shows anywhere else.
Where the muscle actually goes
Muscle is lost when protein is not met. That is the whole mechanism.
The pattern she sees is someone who has done no calculation at all. They wake up, drink water, keep drinking water, skip meals, then eat something small in the evening. Weight falls quickly, which feels like success, and a large share of what fell was muscle.
If a plan does not tell you how much protein to eat each day, it is not a plan. It is a stretch of eating less, and the bill arrives later. A proper weight loss diet plan sets the protein target before it sets the menu.
Your calorie requirement shrinks as you do
This part is normal and unavoidable. What you needed at 85 kg is not what you need at 65 kg. A smaller body costs less to run.
It only causes trouble because nobody accounts for it. People finish a diet and go back to the portions they were eating at the heavier weight, and those portions are now a surplus rather than maintenance.
The slowdown lasts longer than the diet
On top of that normal drop, the body adapts. Push it hard enough for long enough and it learns to run on less.
Ayesha refers to follow up research on people who lost a large amount of weight very quickly, where the slowdown was still measurable years afterwards, in the region of several hundred calories a day below what their body size predicted. They were maintaining, not losing, on far less food than they should have needed.
Her point is that this is not permanent damage and it can be reversed. But it can sit in the body for years, and if you come off a crash diet assuming your old appetite and old portions are safe, they are not.
Hunger after a diet is not ordinary hunger
Two hormones matter here. Leptin is the signal that tells you to stop eating. Ghrelin is the one that tells you to start.
Severe restriction drops leptin, so the stop signal gets quieter. At the same time ghrelin rises, so hunger sits above normal. You end up hungrier than you were before the diet and less able to notice when you are full.
Ayesha says this sometimes settles quickly and sometimes does not, and she is open about having lived through it herself. Her mother would ask why she ate the way she did when she had never gone without anything as a child. The answer was hormonal, not moral.
This matters because of what people conclude. They decide they have no willpower. What actually changed was the signalling.
The moment the diet is declared finished
There is a point where people decide it is over. Enough dieting, back to normal.
The problem is that normal is what caused the gain in the first place. She described a client seen that same day. Breakfast at home, food ordered in at the office, then half a roti at dinner because he was being careful, and then pizza ordered at midnight or one in the morning, every single day.
Four meals, two of them ordered in, one of them at the worst possible hour. A diet laid on top of that is a pause, not a change, and when the pause ends the weight has nowhere to go but back. This is also why losing weight without dieting works better for some people than a short strict phase does.
Some of what comes back is not fat at all
This is the part that makes people quit, and it is the most avoidable of the lot.
While you are dieting your sodium intake falls. Not because you are salting your food less, but because processed food, juices, sharbat and packaged snacks drop out of the day. Less sodium means less water held in the body. There is also simply less food sitting in your gut. Both of those show up on the scale.
Start eating normally again and that water comes back. One to two kilos is typical, and Ayesha has seen three to four in some cases, within days.
It is not fat. Nothing you ate in three days could be. It settles over a week or two. But people see the number, decide the whole effort was pointless, and then eat everything in sight. That is when the real regain starts.
How to stop it happening
Her prevention list is unglamorous, and most of it is about how you come off a diet rather than the diet itself.
- Hit your protein every single day. Protein is what protects muscle, and muscle is what protects your metabolic rate.
- Train against resistance. The gym is better if you can get there. If you cannot, a home routine still counts. Cardio on its own will not hold on to muscle.
- Drink water properly. Partly for the obvious reasons, partly because people who drink water before a meal eat less roti with it.
- Add fibre on purpose. Your ghrelin is raised, so you are hungrier than someone who never dieted. Salad with meals, fruit, chia seeds, or isabgol stirred into water all help you feel full without adding much.
- Use whole wheat atta, not white flour.
- Cut the portion, not the food. If you ate two rotis before the diet, eat one now. Roti stays. The quantity changes.
- Accept the new maintenance number. If you used to hold steady on 2000 calories, you may now be holding steady on 1500 to 1800. Going back to your old portions is not returning to normal, it is a surplus.
- Come off the diet gradually. Raise your intake slowly instead of stopping overnight.
The short version
Weight regain is predictable, and predictable things can be planned for.
Lose the weight in a way that keeps your muscle. Expect your maintenance calories to be lower afterwards. Expect a few kilos of water to return the moment you eat normally again. Expect to be hungrier than you were before. None of that is failure, and all of it is manageable if somebody tells you in advance.
If you have lost weight and watched it come back more than once, that pattern is worth sorting out with someone rather than starting again on your own. You can see real client results or book a consultation with Ayesha Nasir, in clinic in Lahore or online anywhere in Pakistan.
This article is general information based on Ayesha Nasir’s video and is not a substitute for a personal consultation. If you have a medical condition or take regular medication, speak to your doctor or dietitian before changing your diet.
