Medically reviewed by Dr. Fowad Shahzad · July 2026
Dr. Fowad’s view: look for the pattern, not one isolated number
A patient may be told separately that the waist is increasing, glucose is “borderline,” triglycerides are high, HDL cholesterol is low, blood pressure is rising or the liver is fatty. These findings often share underlying biology. Looking at them together can reveal risk earlier than waiting for diabetes or heart disease to develop.
What is insulin resistance?
Insulin helps glucose move from the bloodstream into cells and also influences how the liver and fat tissue handle energy. In insulin resistance, muscle, liver and fat cells do not respond to insulin as efficiently. The pancreas may compensate by making more insulin, sometimes keeping glucose in the normal range for years. When compensation is no longer enough, prediabetes or type 2 diabetes can appear.
Insulin resistance is associated with abdominal weight gain, physical inactivity, family history, sleep problems, certain medicines and conditions such as PCOS/PMOS and metabolic fatty liver disease. A person can have insulin resistance without having every one of these features.
Fasting insulin and formulas such as HOMA-IR can be useful in selected settings, but direct tests of insulin resistance are mainly research tools and laboratory cut-offs vary. In practice, Dr. Fowad interprets the full clinical pattern—waist and weight history, blood pressure, glucose or HbA1c, lipids, liver health, medicines, sleep and family history.
What is metabolic syndrome?
Metabolic syndrome is the name given to a cluster of cardiometabolic risk factors. The usual components are:
- increased waist or central abdominal fat;
- raised fasting glucose or treatment for high glucose;
- raised blood pressure or blood-pressure treatment;
- high triglycerides; and
- low HDL cholesterol.
Different professional groups use slightly different thresholds, and waist cut-offs should account for ethnicity. The purpose is not to attach a label to one laboratory report; it is to recognize a pattern associated with higher risk of type 2 diabetes, cardiovascular disease and related metabolic complications.
Why belly weight, fatty liver, PCOS and diabetes often overlap
Excess energy stored around abdominal organs can release signals that worsen insulin action. The liver may produce more glucose and accumulate fat, the pancreas may need to produce more insulin, and blood pressure and lipid patterns can change. In PCOS/PMOS, insulin resistance can amplify ovarian androgen production and make cycle, acne, facial-hair and weight concerns harder to manage. Biology differs between people, so the presence or absence of obesity alone does not prove or exclude insulin resistance.
Symptoms are not a reliable screening test
Insulin resistance and metabolic syndrome often cause no specific symptoms. Darkened, velvety skin at the neck or underarms can be associated with insulin resistance, but diagnosis should not be made from appearance alone. Thirst, frequent urination, blurred vision or unexplained weight loss may suggest significant hyperglycaemia and deserve prompt testing.
What Dr. Fowad may assess
- weight trend, waist pattern, family history and previous pregnancies;
- blood pressure measured correctly and, when useful, home readings;
- fasting glucose, HbA1c and selected additional glucose testing;
- triglycerides, HDL, LDL and overall cardiovascular risk;
- liver enzymes and evidence of metabolic fatty liver disease;
- sleep apnoea risk, activity, nutrition, medicines and tobacco use;
- PCOS/PMOS features, thyroid questions or other targeted causes when clinically indicated.
Treatment is more than “eat less sugar”
A useful plan targets the risks actually present. It may include sustainable nutrition and activity changes, sleep treatment, medical obesity care, diabetes prevention or treatment, blood-pressure and lipid management, and follow-up of fatty liver risk. Medicines are selected for an individual indication; no supplement, IV “detox” or single food reverses the entire syndrome.
Progress may be reflected by waist, blood pressure, glucose, lipids, liver markers, fitness or symptoms—not only the number on the scale.
Questions patients often ask
Does insulin resistance always become diabetes?
No. Risk varies, and early changes in weight, activity, sleep and medical treatment can reduce progression risk. Regular follow-up matters because glucose may remain normal while the pancreas is compensating.
Can a person have insulin resistance without obesity?
Yes. Body-fat distribution, genetics, ethnicity, sleep, medicines and other conditions matter. Weight alone cannot diagnose or exclude insulin resistance.
Can insulin resistance explain every case of weight gain?
No. Weight change has many possible contributors. Insulin resistance may be part of the pattern, but medicines, sleep, eating patterns, menopause, thyroid disease, mental health and other medical conditions may also need consideration.
Primary sources
- NIDDK: Insulin Resistance & Prediabetes
- National Heart, Lung, and Blood Institute: Metabolic Syndrome
- American Diabetes Association: Standards of Care in Diabetes—2026
This page provides general education and cannot diagnose insulin resistance, metabolic syndrome or diabetes. Testing and treatment must be individualized. New chest pain, severe breathlessness, one-sided weakness, confusion or symptoms of severe high glucose require urgent medical assessment.