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There is a frustrating sentence many people say after months of trying to lose weight.
“I’m eating less, but I’m still gaining weight.”
Sometimes they are tracking calories.
Sometimes they have cut sugar.
Sometimes they are walking more, skipping snacks, eating smaller dinners and saying no to foods they used to enjoy.
And still, the scale does not move.
Or worse, it moves the wrong way.
The usual advice is simple:
Eat less.
Move more.
Be consistent.
And yes, energy balance matters. If the body is in a true, sustained calorie deficit, weight loss usually happens over time.
But the human body is not a calculator.
Hunger changes.
Cravings change.
Sleep changes.
Stress hormones change.
Water retention changes.
Menstrual cycles change.
Muscle mass changes.
And in some people, insulin resistance changes the whole weight loss experience.
Insulin resistance does not break the laws of biology. But it can make weight loss feel much harder than it should.
It can increase hunger, push fat storage around the abdomen, affect energy levels, raise blood sugar risk and make the body less flexible at switching between burning glucose and burning fat.
That is why someone can be “doing the right things” and still feel stuck.
The question is not always:
Are you trying hard enough?
Sometimes the better question is:
Is your metabolism under strain?
What is insulin resistance?
Insulin is a hormone made by the pancreas.
Its main job is to help move glucose, or sugar, from the blood into the body’s cells so it can be used for energy.
After you eat, especially after carbohydrate-containing foods, blood glucose rises. Insulin helps move that glucose into muscle, liver and fat cells.
When insulin is working well, this system runs quietly in the background.
But with insulin resistance, the body’s cells do not respond to insulin as effectively as they should.
So the pancreas makes more insulin to get the same job done.
At first, blood sugar may still look normal.
That is important.
A person can have insulin resistance before diabetes appears on a blood test.
The body may be producing extra insulin to keep glucose under control. This can continue for years before fasting glucose or HbA1c starts to rise.
That hidden stage is where many people feel something is off, but they are told their basic results are “normal”.
Why insulin resistance can affect weight
Insulin is not only a blood sugar hormone.
It is also involved in energy storage.
When insulin levels are often high, the body is more likely to store energy and less likely to release stored fat easily.
That does not mean insulin is bad. Insulin is essential for life.
The problem is when the body needs too much insulin too often.
In insulin resistance, the body may sit in a higher-insulin state for longer periods. This can make it harder to access stored fat between meals, especially when combined with frequent snacking, low activity, poor sleep, high stress or a diet high in refined carbohydrates.
Many people describe it like this:
They eat less, but feel hungrier.
They cut calories, but feel tired.
They lose a little weight, then rebound.
They gain fat around the belly more easily than before.
They feel sleepy after meals.
They crave sugar or carbohydrates in the afternoon or evening.
None of these symptoms prove insulin resistance on their own.
But together, they can suggest that blood sugar and insulin regulation may be worth checking.
The problem with “just eat less”
For some people, “just eat less” works.
For others, it becomes a cycle.
They restrict food during the day.
They become extremely hungry at night.
They crave quick energy.
They overeat without planning to.
Then they feel guilty and restrict again.
Insulin resistance can make this cycle worse because the body may struggle to maintain stable energy between meals.
If blood glucose rises and falls sharply, hunger can come back quickly. If insulin stays high, fat burning may feel harder. If sleep is poor, appetite hormones can shift in the wrong direction. If stress is high, cravings can increase.
This is why many people with insulin resistance do better with a metabolic strategy rather than simply a smaller version of the same diet.
The goal is not just fewer calories.
The goal is better blood sugar control, better satiety and better metabolic flexibility.
Why belly fat matters
Weight does not tell the whole story.
Two people can have the same weight but very different metabolic risk.
Abdominal fat, especially visceral fat around the organs, is more strongly linked with insulin resistance than fat stored in some other areas of the body.
This is why waist circumference can matter.
A growing waistline may be a sign that fat is being stored around the abdomen and organs, even if overall body weight has not changed dramatically.
Visceral fat is not just passive storage.
It is metabolically active. It can release inflammatory signals and fatty acids that worsen insulin resistance, affect cholesterol and increase the risk of type 2 diabetes and fatty liver disease.
This is why insulin resistance often overlaps with:
- Prediabetes
- Type 2 diabetes
- Fatty liver disease
- High triglycerides
- Low HDL cholesterol
- High blood pressure
- PCOS
- Sleep apnoea
- Abdominal weight gain
The body is giving clues.
They just need to be connected.
Common signs that may suggest insulin resistance
Insulin resistance can be silent.
Some people have no obvious symptoms and only discover it through blood tests or diabetes screening.
Others notice patterns such as:
- Weight gain around the abdomen
- Difficulty losing weight despite lifestyle changes
- Strong sugar or carbohydrate cravings
- Feeling tired or sleepy after meals
- Frequent hunger
- Energy crashes
- Skin tags
- Darker, velvety skin patches around the neck, armpits or groin
- Irregular periods or symptoms of PCOS
- Fatty liver on ultrasound
- High triglycerides
- Prediabetes or a family history of type 2 diabetes
These signs do not diagnose insulin resistance by themselves.
But they are good reasons to speak with a doctor and consider proper testing.
Why the scale can be misleading
A weight loss plateau does not always mean fat loss has stopped.
The scale can be affected by:
- Water retention
- Salt intake
- Menstrual cycle changes
- Constipation
- Muscle gain from exercise
- Poor sleep
- Stress
- Medications
- Alcohol intake
- Weekend eating patterns
- Underestimating portions
- Reduced movement during the day
This matters because many people think they are gaining fat when the scale is actually showing fluid, food volume or normal body fluctuation.
But if the trend continues for weeks or months, especially with abdominal weight gain or blood sugar risk factors, it is worth looking deeper.
A plateau is not always a willpower problem.
Sometimes it is a signal to check the metabolic picture.
How insulin resistance is tested
There is no single perfect everyday test for insulin resistance.
Doctors usually assess the full picture using symptoms, risk factors, body measurements and blood tests.
Common tests may include:
- Fasting blood glucose
- HbA1c
- Fasting insulin, where clinically appropriate
- Lipid profile, including triglycerides and HDL cholesterol
- Liver function tests
- Kidney function
- Blood pressure
- Waist circumference
- Oral glucose tolerance test in selected cases
- PCOS-related hormone tests if symptoms suggest it
HbA1c shows average blood glucose over the past two to three months.
Fasting glucose shows blood sugar at one point in time after fasting.
Fasting insulin may help identify high insulin levels before glucose becomes abnormal, although it is not always used as a routine screening test.
An oral glucose tolerance test can show how the body handles glucose after a measured sugar load. It may be used in certain cases, including pregnancy, suspected prediabetes or when results are unclear.
The key point is this:
A “normal” fasting glucose does not always mean insulin resistance is absent.
It may simply mean the pancreas is still producing enough insulin to keep glucose controlled.
Insulin resistance and PCOS
Insulin resistance is especially important in women with PCOS.
Not every woman with PCOS has the same symptoms, and not every person with insulin resistance has PCOS.
But the two often overlap.
In PCOS, insulin resistance can contribute to higher insulin levels, which may worsen androgen-related symptoms such as acne, facial hair growth, scalp hair thinning and irregular ovulation.
This is why weight gain, irregular periods, adult acne and difficulty losing weight should not always be treated as separate problems.
They may be connected through a hormonal and metabolic pattern.
For someone with suspected PCOS, testing may need to look beyond weight alone.
A proper assessment may include cycle history, androgen symptoms, metabolic screening, blood pressure, cholesterol, glucose markers and sometimes ultrasound or hormone testing depending on the situation.
Insulin resistance and fatty liver
The liver is one of the main organs affected by insulin resistance.
When insulin resistance is present, the liver may produce more glucose and store more fat.
Over time, this can contribute to fatty liver disease, now often called MASLD, which stands for metabolic dysfunction-associated steatotic liver disease.
Many people with fatty liver have no symptoms.
They may only find out after a blood test shows raised ALT or GGT, or an ultrasound mentions fatty liver.
This is why abnormal liver enzymes and weight gain around the middle should not be ignored.
They may be part of the same metabolic story.
Can you reverse insulin resistance?
In many people, insulin resistance can improve.
That does not mean it disappears overnight.
It also does not mean everyone needs the same plan.
But insulin sensitivity can often improve with changes that reduce metabolic pressure on the body.
Helpful strategies may include:
- Gradual weight loss if above a healthy weight
- Regular walking or exercise
- Strength training to build muscle
- Higher protein meals to improve fullness
- More fibre from vegetables, legumes, whole grains, nuts and seeds
- Reducing sugary drinks and ultra-processed foods
- Improving sleep quality
- Reducing alcohol intake
- Managing stress
- Treating sleep apnoea if present
- Reviewing medications that may affect weight
- Medical support for PCOS, prediabetes, diabetes or obesity where appropriate
Muscle is especially important.
Muscle helps clear glucose from the bloodstream. This is one reason resistance training can be useful for metabolic health, not just appearance.
Even a 5–10% weight loss can improve metabolic markers in many people with overweight, obesity or type 2 diabetes risk.
But the goal is not crash dieting.
The goal is consistency that the body can sustain.
Why extreme dieting can backfire
When people feel stuck, they often try to go harder.
They cut meals.
They remove entire food groups.
They over-exercise.
They ignore hunger.
They weigh themselves every morning.
This may work briefly, but it often fails long term.
Extreme restriction can increase cravings, reduce daily movement, affect sleep, worsen mood and make binge-restrict cycles more likely.
For someone with insulin resistance, the smarter approach is usually not the most extreme one.
It is the one that improves satiety, protects muscle, stabilises energy and reduces blood sugar swings.
That may mean:
- Eating enough protein
- Choosing slow-digesting carbohydrates
- Adding fibre
- Walking after meals
- Lifting weights
- Reducing liquid calories
- Spacing meals sensibly
- Sleeping properly
- Getting blood tests instead of guessing
A sustainable plan beats a dramatic plan that lasts two weeks.
When weight loss medications may be considered
Weight management medications may be appropriate for some people, especially when obesity, prediabetes, type 2 diabetes, PCOS, fatty liver or other metabolic risks are present.
These medicines can help some patients reduce appetite, improve weight outcomes and support metabolic health.
But they should not be used as a shortcut without assessment.
A doctor should consider medical history, current medications, pregnancy plans, eating patterns, mental health, blood test results and possible side effects.
Medication may help selected patients, but it works best when combined with nutrition, movement, sleep and follow-up care.
The aim is not just weight loss.
The aim is better metabolic health.
When should you speak to a doctor?
You should consider speaking with a doctor if you:
- Are gaining weight despite repeated lifestyle changes
- Have increasing belly fat or waist circumference
- Feel very sleepy after meals
- Have strong sugar cravings or energy crashes
- Have a family history of type 2 diabetes
- Have PCOS symptoms such as irregular periods, acne or facial hair growth
- Have fatty liver or abnormal liver enzymes
- Have high blood pressure or abnormal cholesterol
- Have had gestational diabetes
- Have not had blood sugar checked recently
- Are considering weight loss medication
You should seek urgent medical care if you have symptoms such as chest pain, severe shortness of breath, confusion, fainting, sudden weakness, severe dehydration, or symptoms of very high blood sugar such as extreme thirst, frequent urination, vomiting or drowsiness.
Where telehealth can help
Telehealth can be a useful first step for people who feel stuck with weight, appetite, blood sugar concerns or possible insulin resistance.
A doctor can review your symptoms, risk factors, weight history, medication history and previous blood tests. They may arrange pathology where appropriate, discuss lifestyle options and help decide whether further assessment is needed.
Doctor Help can support patients who want to better understand their metabolic health, including possible insulin resistance, prediabetes risk, fatty liver concerns, PCOS-related symptoms or weight management options.
Telehealth cannot replace every examination or specialist assessment.
But it can help you stop guessing.
If you have been eating less, gaining weight and blaming yourself, it may be time to check what is happening underneath the surface.
The real question is not just weight
Weight is visible.
Metabolic health is often hidden.
That is why insulin resistance can be so frustrating.
You may see the belly fat, the cravings, the tiredness and the plateau before you ever see an abnormal blood test.
But those signs can still matter.
The goal is not to blame insulin for everything.
The goal is to stop treating weight as only a willpower issue.
If your body is giving you repeated signs — hunger, fatigue, abdominal weight gain, sugar crashes, fatty liver, PCOS symptoms or rising blood sugar — it is worth asking better questions.
What is my HbA1c?
What are my triglycerides?
Is my waist circumference increasing?
Could PCOS be involved?
Are my liver enzymes normal?
Is insulin resistance part of the picture?
Weight loss becomes easier to approach when the problem is properly understood.
Not guessed.
Not shamed.
Not dismissed.
Understood.
Key takeaways
Insulin resistance means the body’s cells do not respond to insulin as effectively as they should.
The pancreas may produce more insulin to keep blood sugar normal, which means insulin resistance can exist before diabetes appears.
Insulin resistance can make weight loss harder by increasing hunger, promoting abdominal fat storage and reducing metabolic flexibility.
A normal fasting glucose does not always rule out insulin resistance.
Useful checks may include HbA1c, fasting glucose, cholesterol, triglycerides, liver function tests, blood pressure, waist circumference and sometimes fasting insulin or an oral glucose tolerance test.
Insulin resistance often overlaps with PCOS, fatty liver disease, prediabetes, type 2 diabetes risk and abdominal weight gain.
Improving insulin sensitivity usually requires a sustainable plan that includes nutrition, exercise, sleep, weight management and medical support where appropriate.
Frequently Asked Questions
Can insulin resistance make you gain weight?
Insulin resistance can make weight gain more likely in some people, especially around the abdomen. It can also increase hunger, cravings and fatigue, which may make weight loss harder. It does not remove the role of calories, but it can affect how easy or difficult weight management feels.
Can you have insulin resistance with normal blood sugar?
Yes. In the early stages, the pancreas may produce extra insulin to keep blood glucose normal. This means fasting glucose or HbA1c can look normal even when the body is working harder than it should.
What is the best test for insulin resistance?
There is no single perfect routine test. Doctors often use a combination of HbA1c, fasting glucose, cholesterol, triglycerides, waist circumference, blood pressure and medical history. Fasting insulin or an oral glucose tolerance test may be useful in selected cases.
Does insulin resistance mean I have diabetes?
No. Insulin resistance can happen before prediabetes or type 2 diabetes. It means the body is not responding to insulin as effectively as it should. If it progresses, blood glucose may rise over time.
Can insulin resistance be reversed?
Insulin resistance can often improve with weight loss where appropriate, regular activity, strength training, better sleep, reduced ultra-processed foods, improved blood sugar control and treatment of related conditions such as PCOS, fatty liver or sleep apnoea.
Why am I eating less but not losing weight?
There are many possible reasons, including water retention, underestimating intake, reduced daily movement, poor sleep, stress, medications, hormonal changes, PCOS, insulin resistance or thyroid issues. If it continues, it is worth speaking with a doctor and checking metabolic markers.
Can Doctor Help assist with insulin resistance concerns?
Doctor Help can help patients discuss weight concerns, blood sugar risk, PCOS symptoms, fatty liver concerns and possible insulin resistance through telehealth where appropriate. A doctor may recommend blood tests, lifestyle changes, follow-up care or in-person review depending on your situation.
References:
- Healthdirect Australia — Type 2 diabetes
- Healthdirect Australia — BMI and waist circumference
- Diabetes Australia — Prediabetes
- Diabetes Australia — Diabetes tests and HbA1c
- RACGP — Defining and diagnosing type 2 diabetes
- RACGP — Weight management interventions for type 2 diabetes
Reviewed By: Dr. Momal Ahmad.
