What prediabetes means
Prediabetes is the stage before type 2 diabetes. Your blood sugar is higher than normal, but it has not yet crossed the level doctors use to diagnose diabetes. The body is starting to struggle with insulin, the hormone that moves sugar from the blood into cells. Think of it as a yellow signal on the road: a clear sign to slow down and change course.
It is a very common finding in routine health check-ups in India. The good news is that this stage is often reversible. Many people who make steady lifestyle changes at this point never go on to develop diabetes, or develop it much later.
Who is at risk?
Prediabetes develops slowly over years. The same things that raise the risk of diabetes raise the risk of prediabetes. Belly fat is especially important for Indians, who tend to store fat around the waist even at a normal body weight.
Children and teenagers who are overweight and eat a lot of packaged snacks and sugary drinks are also increasingly found to have raised sugar. If you have two or more of the risk factors listed, ask your doctor about a sugar test even if you feel healthy.
- Age above 30 to 35 years
- Family history of diabetes
- Waist size that is increasing, or being overweight
- Sitting for long hours with little exercise
- High blood pressure, high triglycerides or low HDL (good) cholesterol
- PCOS, or diabetes during a past pregnancy
Symptoms: usually none
Most people with prediabetes feel completely normal. There may be no thirst, no frequent urination and no weight loss. Some people notice dark, velvety patches of skin on the back of the neck or in the armpits, called acanthosis nigricans, which is a sign of insulin resistance. Because symptoms are rare, the only reliable way to find prediabetes is a blood test.
Some people only find out when a test is done for a job medical, an insurance check, surgery or pregnancy. Treat such a result as a helpful early warning rather than a cause for panic. You have time to act, and the changes you make now protect your heart, kidneys and eyes in the years ahead.
Tests that detect prediabetes
Your doctor may use one or more of three tests. A fasting blood sugar is taken after an overnight fast. The HbA1c test gives an average of your sugar over the last two to three months and needs no fasting. An oral glucose tolerance test checks sugar two hours after a measured glucose drink. Each test has its own range for normal, prediabetes and diabetes, and your doctor will explain where your result falls.
If you have prediabetes, a repeat test is usually advised at least once a year to see whether sugar is improving or rising. Your doctor may also check blood pressure, cholesterol and liver function at the same visit, since these problems often travel together with raised sugar.
How to bring sugar back to normal
Lifestyle change is the main treatment. Even a small, steady weight loss can make a clear difference, especially if it reduces belly fat. Aim for at least 30 minutes of brisk walking or other activity on most days, and add some muscle-strengthening work such as climbing stairs or simple home exercises.
On your plate, reduce white rice, maida, bakery items, sweets and sugary tea or coffee. Choose millets like ragi and jowar, whole wheat, dal, sprouts, vegetables and salads. Avoid sugary drinks and packaged juices. Eat at regular times rather than grazing on snacks all day.
- Sleep seven to eight hours; poor sleep worsens sugar control
- Stop smoking and limit alcohol
- Manage stress with walks, prayer, yoga or time with family
Do I need medicines?
Most people with prediabetes do not need medicines. In some people at higher risk, such as those with a lot of excess weight, a strong family history or a past history of diabetes in pregnancy, a doctor may prescribe metformin along with lifestyle changes. This is only on a doctor's prescription and is never a replacement for diet and exercise.
Your doctor may also check and treat blood pressure and cholesterol, since prediabetes raises the risk of heart disease too. Pregnant women with raised sugar need special monitoring. Remember that no tablet, powder or herbal drink has been shown to replace these basic changes. Talk to your doctor or pharmacist about a plan that suits your age, health and daily routine.
Medicines doctors commonly use
Only your doctor can decide which medicine, dose and combination is right for you.
- MetforminMay be prescribed for some high-risk people to help the body use insulin better and slow progression to diabetes.Only on a doctor's prescription; it does not replace diet and exercise.
- Statins such as atorvastatin or rosuvastatinMay be prescribed if cholesterol is high, to lower the risk of heart attack and stroke.Only on a doctor's prescription; report unexplained muscle pain to your doctor.
- BP medicines such as telmisartan or amlodipineUsed when blood pressure is also high, which is common alongside prediabetes.Only on a doctor's prescription; do not stop on your own.
See a doctor urgently if
- Increasing thirst, frequent urination or weight loss without trying, which can mean diabetes has developed
- Repeated skin, gum or urine infections that are slow to clear
- Blurred vision that keeps coming back
- Chest pain or breathlessness on exertion
- Raised sugar found during pregnancy
Tests that may help
This article is general health information, not medical advice. Do not start, stop or combine medicines on your own — always follow your doctor's prescription and ask your pharmacist if unsure.