Metabolic health: five numbers that matter more than weight
In 2018, American scientists calculated how many adults could be called metabolically healthy based on five simple indicators — waist, blood sugar, blood pressure, triglycerides, and “good” cholesterol. The result was 12%. Eight out of ten people with a normal weight also failed. Metabolic health is not about weight, but about how the body handles energy: whether it can keep blood sugar steady, switch from carbohydrates to fat, and avoid storing everything in the abdomen and liver. This is what breaks down first — ten years before diagnosis — and this is what the method repairs, faster than weight disappears. This page is a map: which numbers to look at, what they mean, and what food does to them.
12%
adults are metabolically healthy
5,7-6,4%
HbA1c — prediabetes
25%
of adults — fatty liver
< 2
triglycerides / HDL
Five numbers instead of one on the scales
Metabolic syndrome is diagnosed when three out of five criteria are present: waist circumference of 80 cm or more in women, triglycerides of 1,7 mmol/l or more, HDL below 1,3, blood pressure of 130/85 or more, and fasting glucose of 5,6 or more. None of them is weight. A thin woman with a waist of 84, triglycerides of 2,0, and blood sugar of 5,8 is metabolically ill with a BMI of 22; a larger woman with a waist of 79 and normal test results is healthy. And all five are moved by one lever — insulin — which food controls. Metabolic syndrome checklist — how to check yourself with one visit to the laboratory.
Five criteria and what drives them
| Indicator | Threshold for women | What lies behind it | What the method does |
|---|---|---|---|
| Waist | 80 cm and above | visceral fat, insulin | goes down first when insulin falls |
| Triglycerides | 1,7 mmol/l and above | sugar and fructose that the liver turns into fat | fall by 30-50% in 2-3 months without sugar |
| HDL | below 1,3 mmol/l | little dietary fat, many carbohydrates | rises with dietary fat |
| Blood pressure | 130/85 and above | insulin retains sodium and water | falls during the first weeks |
| Fasting glucose | 5,6 mmol/l and above | insulin resistance | normalizes in 1-3 months |
Blood sugar: swings you cannot see
A bun for breakfast — blood sugar reaches 8-9 an hour later, insulin is released in excess, and blood sugar falls below its starting level by 11:00 — hunger, weakness, “my brain does not work,” and the next bun. These are swings, and each amplitude is stress for the blood vessels and pancreas. Years of swings make insulin work less effectively, fasting blood sugar creep upward, and glycated hemoglobin cross 5,7 — prediabetes, which doctors often do not call it until it reaches 6,5. A continuous glucose monitor shows these swings in real time — and why they do not happen after an omelet. Blood sugar swings, HbA1c and prediabetes, what a glucose monitor shows, fatty liver, section — blood sugar.
The liver: the organ that responds to sugar first
Fructose — half of sugar, and all the fructose in honey and juices — is processed only by the liver, and it turns the excess into fat, which it stores in itself. Fatty liver affects one in four adults, most without symptoms, discovered “by chance” on an ultrasound. It is not alcohol — it is sugar, and it is the first step toward insulin resistance and diabetes. The good news is that the liver is the fastest-recovering organ, and without sugar and fructose, fat leaves it within 2-4 months; ALT falls before weight does.
Signs that metabolism is impaired
- Hunger 2 hours after eating
- Sleepiness after lunch
- Craving sweets in the second half of the day
- A belly despite thin arms
- Darkened skin on the neck, skin tags
- Blood pressure is creeping upward
- Fatigue that sleep does not explain
Signs that metabolism is working
- Feeling full for 4-5 hours after eating
- Steady energy without crashes
- Fasting for 14-16 hours is easy
- Waist-to-height ratio below 0,5
- Triglycerides below 1,0
- Fasting blood sugar 4,5-5,2
- Warmth, strength, a clear head
Cholesterol: the number people read incorrectly
Total cholesterol says almost nothing. Triglycerides and HDL do: a ratio below 2 means there are few small, dense LDL particles and risk is low; above 3-4 means the opposite, regardless of total cholesterol. On a low-carb diet, triglycerides fall and HDL rises — both moving in the right direction; LDL rises in some people, especially those who are lean, and this requires separate analysis, not panic and not ignoring it. Blood pressure falls in most people within weeks on the method — sometimes faster than a doctor can reduce the medication dose. Cholesterol on a low-carb diet, triglycerides and HDL, blood pressure, how to read a lipid panel, section — cholesterol and the heart.
Fasting glucose and insulin, HbA1c, lipid panel (total cholesterol, LDL, HDL, triglycerides), ALT and AST, morning blood pressure for three days, waist circumference. This is your baseline. In three months — repeat the same tests.
Blood pressure and water — the first weeks. Hunger between meals goes away — insulin drops. Fasting glucose may still “jump around” — the liver is releasing its stores. Don’t judge by a single test.
Triglycerides down 30-50%, HDL up, HbA1c down 0,3-0,5, ALT moving toward normal, waist down 5-8 cm. This is metabolic health that shows up on paper before it shows on the scales.
Glucose-lowering, blood pressure and diuretic medications — doses may become excessive within weeks. Keep your doctor informed from day one, and monitor glucose and blood pressure at home. The method does not replace medication — your doctor adjusts it based on the numbers.
Metabolic flexibility: the ability to switch
A healthy body switches from carbohydrates to fat overnight and back again at breakfast without noticing. A body fueled by sugar six times a day has forgotten how to do this: without food for three hours — shaking, hunger, brain fog, because fat is unavailable as fuel and the sugar has run out. This is a lack of flexibility, and it looks like “I can’t go without snacks.” The method restores it in 2-4 weeks: the body remembers how to burn fat, and 14-16-hour breaks become unnoticeable. Ketones are not mysticism, but an indicator that the switch has happened. Metabolic flexibility, ketones without mysticism, energy crashes after meals, section — metabolic flexibility.
Common mistakes
- Judging health by weight and BMI
- Looking only at total cholesterol
- Fearing fat and eating “low-fat” products with sugar
- Considering a blood sugar level of 5,8 “almost normal”
- Starting the method while taking glucose-lowering medication without a doctor
- Not doing tests before starting — then there is nothing to compare
- Expecting fasting glucose to drop within a week
Frequently asked questions
My weight is normal — why do I need this?
Eight out of ten people with a normal weight do not meet five criteria. Waist circumference, triglycerides and glucose — 15 minutes at the lab.
Is prediabetes forever?
No. HbA1c 5,7-6,4 can be reversed through diet in most people within 3-6 months. Even early-stage type 2 diabetes can go into remission on a low-carbohydrate diet — this is included in the clinical guidelines of several countries.
My LDL increased on the method — should I quit?
First, check triglycerides and HDL: if they are normal but LDL has increased, the particles are large, and the risk is not the same as with high triglycerides. The analysis is covered in the article about cholesterol; the decision should be made with a doctor based on the full picture, not one number.
How quickly do test results change?
Blood pressure and triglycerides — weeks. Fasting glucose and HbA1c — 2-3 months. ALT — 2-4 months. HDL — 3-6 months.
What matters more — test results or how you feel?
Start with the tests: they change earlier and are more objective. How you feel is confirmation after a month: steady energy and fullness for 4-5 hours.
What to do tomorrow
Waist and blood pressure
Measure your waist at the navel, and take your blood pressure in the morning for three days. Two of the five numbers — at home.
Tests
Glucose, insulin, HbA1c, lipid panel, ALT. One blood draw. This is your baseline.
Sugar and flour — out of the house
The only thing that moves all five numbers at once.
Keep your doctor informed
If you take medication for blood sugar or blood pressure — tell your doctor today that you are changing your diet.
What to read next
Blood sugar — fluctuations, prediabetes, glucometer, liver. Cholesterol and the heart — what rises, what falls and how to read the report. Metabolic flexibility — switching, ketones, energy crashes, syndrome checklist. The foundation is the method and low-carbohydrate diet; insulin in women — insulin resistance; visceral fat — visceral fat.
Reviewed by Anastasia Zhukova, Fitness Trainer • Author of a Nutrition and Training System • Creator of an AI Personal Support Platform
A human has reviewed this material against the method and real client practice.