Key points
- In type 2 diabetes the body still makes insulin but cannot use it well, so sugar builds up in the blood.
- Indians tend to develop it about a decade earlier than people of European origin, and at a lower body weight.
- Many people have no symptoms for years, which is why testing from age 35 (earlier if you have risk factors) matters.
- The first three months set the tone: baseline checks of eyes, kidneys, feet and cholesterol, a plan for food and activity, and usually one medicine.
If you have just been told you have type 2 diabetes, you are far from alone. The ICMR-INDIAB study estimated that about 101 million people in India were living with diabetes in 2021, and another 136 million had prediabetes. Most of them have type 2. That is roughly one in every ten adults, so chances are someone at your dinner table already knows what you are going through.
It can still feel like a lot. People often tell us the hardest part is not the diagnosis itself but the flood of advice that follows, from relatives, WhatsApp forwards and the neighbour who swears by karela juice. This page sticks to what the evidence says.
What type 2 diabetes is
When you eat, carbohydrates are broken down into glucose (sugar), which enters your blood. Insulin, a hormone made by the pancreas, moves that glucose into your cells to be used for energy. In type 2 diabetes two things go wrong together:
- Insulin resistance: your muscles, liver and fat cells respond less to insulin, so more is needed to do the same job.
- Falling insulin output: over the years the pancreas cannot keep up with that extra demand.
The result is sugar that stays high in the blood. Over time, high sugar damages small blood vessels in the eyes, kidneys and nerves, and speeds up damage to the larger arteries of the heart and brain. That sounds frightening, but it is also the reason treatment works: bring the sugar, blood pressure and cholesterol down, and the risk of these problems falls a great deal.
Type 2 is different from type 1 diabetes, in which the immune system destroys the insulin-making cells and insulin is needed from the start. Type 1 usually begins in childhood or young adulthood, but not always. If you are slim, young, losing weight quickly, or your sugar is very high at diagnosis, ask your doctor whether another type is possible.
Why Indians get it earlier, and thinner
A common story in Indian clinics: a man in his late thirties, not visibly overweight, plays cricket on Sundays, and is surprised to find his HbA1c is 7.8%. This is not bad luck. People of South Asian origin carry a higher risk at the same body weight.
- Fat around the middle. Many Indians store more fat around the abdomen and in the liver, even with a normal BMI. This fat drives insulin resistance. A waist above about 90 cm in men or 80 cm in women is a warning sign often used for South Asians.
- Lower BMI cut-offs. A WHO expert group suggested that for Asian populations, health risk rises from a BMI of about 23, not 25. So "slightly chubby" by family standards may already be risky.
- Family history. If a parent or sibling has type 2 diabetes, your risk is clearly higher. In many Indian families it runs through several generations.
- Food patterns. In the ICMR-INDIAB diet survey, about 62% of daily calories in Indian diets came from carbohydrates, much of it white rice, refined flour and added sugar, while protein was low. Higher carbohydrate intake was linked to higher odds of diabetes.
- Sitting a lot. Long commutes, desk jobs and evenings in front of a screen reduce how much sugar the muscles burn.
- Other links. Previous diabetes in pregnancy (gestational diabetes), polycystic ovary syndrome (PCOS), high blood pressure, high triglycerides and fatty liver all go together with type 2 diabetes.
None of this is about blame. You cannot choose your genes, and many families eat the way they do because that is the food they grew up with and can afford. What you can change is what happens from here.
Symptoms of type 2 diabetes
Many people have no symptoms at all, sometimes for years. When symptoms do appear, they tend to creep up slowly, so they are easy to blame on age, heat or work stress:
- Feeling thirsty all the time, and passing urine often, including at night
- Tiredness that does not improve with rest
- Weight loss you cannot explain
- Blurred vision that comes and goes
- Cuts, boils or foot wounds that heal slowly
- Repeated infections: urine infections, fungal infections in the groin or under the breasts, itching around the genitals
- Tingling, burning or numbness in the feet
If you notice two or three of these together, get your sugar checked rather than waiting for the annual check-up.
Who should get tested
The American Diabetes Association Standards of Care 2026 recommend testing for all adults from age 35, and repeating it at least every three years if the result is normal. Testing should start earlier, at any adult age, if you are overweight (for Asian people, a BMI of 23 or above) and have at least one other risk factor, such as:
- A parent or sibling with diabetes
- High blood pressure, high triglycerides or low HDL cholesterol
- Heart disease
- PCOS, or being physically inactive
Women who had gestational diabetes should be tested at least every three years for life, even if sugar returned to normal after the baby was born. People with prediabetes should be tested every year.
How type 2 diabetes is diagnosed
Diabetes is diagnosed with a lab blood test, not a glucometer or a urine strip. Your doctor may use HbA1c (6.5% or higher), fasting glucose (126 mg/dL or higher), a 2-hour glucose tolerance test (200 mg/dL or higher), or a random glucose of 200 mg/dL or higher with classic symptoms. Unless the picture is very clear, an abnormal result is usually confirmed with a second test.
Our guide to blood sugar tests and targets explains each test, and the HbA1c report guide walks you through your lab report line by line.
The first three months after diagnosis
You do not have to fix everything in week one. Think of the first three months as setting up the foundations. Most doctors will cover these:
| What | Why |
|---|---|
| HbA1c, then again at about 3 months | Gives a starting point and shows whether the plan is working |
| Kidney tests: urine albumin-to-creatinine ratio (UACR) and eGFR | Kidney changes can already be present at diagnosis in type 2 |
| Dilated eye exam or retinal photograph | Early eye damage has no symptoms |
| Foot check, including a sensation test | Finds nerve damage before a wound appears |
| Lipid profile and blood pressure | Heart disease is the biggest risk in diabetes |
| Liver tests, and vitamin B12 if you start metformin | Fatty liver is common; metformin can lower B12 over time |
Medicine. Most people start with metformin, alongside changes to food and activity. Some people, especially those with heart or kidney disease, may also start other medicines early. Your doctor may also recommend insulin for a short time if sugar is very high at diagnosis; this does not mean you will need it forever. Our guide to diabetes medicines and insulin explains what each one does.
Food. You do not need a special "diabetic" kitchen. Smaller portions of rice and roti, more vegetables and dal, and fewer sweets and sugary drinks make a real difference. Our diabetes diet guide with Indian food has a sample day of meals.
Movement. Aim for at least 150 minutes a week of brisk walking or similar activity, spread over most days, plus some strength exercise two or three times a week. Even a 10 to 15 minute walk after your biggest meal helps lower the sugar spike.
Learning. Ask your doctor, or a diabetes educator if your clinic has one, to show you how to use a glucometer, what your targets are, and what to do if your sugar goes too low.
It is normal to feel angry, scared or simply tired of thinking about it. If low mood or worry about diabetes is affecting your sleep, work or relationships, tell your doctor. Diabetes distress is common and it can be treated.
Can type 2 diabetes go into remission?
For some people, yes. Remission means an HbA1c below 6.5% that stays there for at least three months after stopping all diabetes medicines. It is not a cure: sugar can rise again if weight comes back, so check-ups continue.
The best evidence comes from the DiRECT trial in the UK, where people with type 2 diabetes of less than six years followed a structured low-calorie weight-loss programme. At one year, 46% were in remission. Among those who lost 15 kg or more, 86% were. Remission is more likely if you are diagnosed recently and can lose a meaningful amount of weight. It should only be tried with your doctor, because medicines may need to be reduced quickly to avoid low sugar.
If you have prediabetes
Prediabetes (HbA1c 5.7–6.4% or fasting glucose 100–125 mg/dL) is your early warning. Not everyone with prediabetes goes on to develop diabetes. Losing around 5–7% of your body weight, if you are overweight, and being active for at least 150 minutes a week clearly lower the risk. Get tested every year.
When to see a doctor
- You have symptoms such as strong thirst, frequent urination, unexplained weight loss or blurred vision.
- You are over 35, or younger with risk factors, and have never been tested.
- You have a foot wound, boil or infection that is slow to heal.
- Vomiting, drowsiness, confusion or fast breathing with high sugar is an emergency. Call 112.
Questions to ask your doctor
- Which type of diabetes do I have, and how sure are we?
- What should my HbA1c target be?
- Which baseline tests do I need, and when?
- How much weight would make a difference for me, and is remission realistic?
- Should my family members get tested?
Frequently asked questions
Can type 2 diabetes be cured?
There is no permanent cure, but some people reach remission, meaning normal HbA1c without medicines for at least three months. This is most likely soon after diagnosis and with significant weight loss. Check-ups still continue because sugar can rise again.
At what age does type 2 diabetes start in India?
It can start at any adult age, and increasingly in people in their twenties and thirties. Indians tend to develop it about ten years earlier than people of European origin, which is why testing from age 35, or earlier with risk factors, is recommended.
Is type 2 diabetes caused by eating too much sugar?
Not directly. It comes from a mix of genes, extra fat around the waist and liver, low activity and a diet high in refined carbohydrates and sugar. Sugary foods and drinks add to the problem, but cutting sugar alone is not the whole answer.
If my parents have diabetes, will I get it?
Your risk is higher, but it is not certain. Keeping your waist in check, staying active and eating less refined carbohydrate lowers it. Get tested regularly, ideally from your early thirties or earlier if you are overweight.
Sources
- Anjana RM, et al. Metabolic non-communicable disease health report of India: the ICMR-INDIAB national cross-sectional study (ICMR-INDIAB-17). Lancet Diabetes Endocrinol 2023;11(7):474–489.
- American Diabetes Association Professional Practice Committee. 2. Diagnosis and Classification of Diabetes: Standards of Care in Diabetes—2026. Diabetes Care 2026;49(Suppl 1).
- American Diabetes Association Professional Practice Committee. 3. Prevention or Delay of Diabetes and Associated Comorbidities: Standards of Care in Diabetes—2026. Diabetes Care 2026;49(Suppl 1).
- American Diabetes Association Professional Practice Committee. 4. Comprehensive Medical Evaluation and Assessment of Comorbidities: Standards of Care in Diabetes—2026. Diabetes Care 2026;49(Suppl 1).
- WHO Expert Consultation. Appropriate body-mass index for Asian populations and its implications for policy and intervention strategies. Lancet 2004;363(9403):157–163.
- Anjana RM, Sudha V, et al. Dietary profiles and associated metabolic risk factors in India from the ICMR–INDIAB survey-21. Nat Med 2025;31(11):3813–3824.
- Lean MEJ, et al. Primary care-led weight management for remission of type 2 diabetes (DiRECT): an open-label, cluster-randomised trial. Lancet 2018;391(10120):541–551.
- Riddle MC, et al. Consensus report: definition and interpretation of remission in type 2 diabetes. Diabetes Care 2021;44(10):2438–2444.
This article is general information for adults in India and is not a diagnosis or a treatment plan. Always discuss results and any changes with your own doctor. Read our editorial policy.