Chat with us on WhatsApp

Prediabetes – Meaning, Symptoms & Prevention

Prediabetes – Meaning, Symptoms & Prevention
Book Appointment
By Dr. Neeraj Sinha in Endocrinology

Feb 21, 2026

Have you recently been told that your blood sugar levels are slightly high, but not high enough to be called diabetes? If yes, you may have prediabetes.

Hearing this word can feel confusing or even scary. But here’s the good news: prediabetes is reversible in most cases. With the right lifestyle changes, you can prevent it from turning into type 2 diabetes.

In this detailed guide, we’ll explain:

      What is prediabetes?

      What are the symptoms of prediabetes?

      What causes prediabetes?

      What are normal vs prediabetic blood sugar levels?

      How to prevent prediabetes naturally?

      Can prediabetes be reversed?

Let’s understand everything step by step in simple.

What Is Prediabetes?

Prediabetes is a health condition where your blood sugar levels are higher than normal, but not high enough to be diagnosed as type 2 diabetes.

Think of it as a warning stage.

Your body is starting to struggle with insulin — the hormone that helps move sugar from your blood into your cells for energy.

If not controlled, prediabetes can gradually progress to type 2 diabetes, heart disease, and other complications.

Prediabetes Blood Sugar Levels

Doctors diagnose prediabetes using simple blood tests.

Here are the standard ranges:

Test

Normal

Prediabetes

Diabetes

Fasting Blood Sugar

Below 100 mg/dL

100–125 mg/dL

126 mg/dL or higher

HbA1c

Below 5.7%

5.7%–6.4%

6.5% or higher

OGTT (2-hour)

Below 140 mg/dL

140–199 mg/dL

200 mg/dL or higher

If your reports fall in the prediabetic range, it means your body needs attention now.

What Causes Prediabetes?

Prediabetes mainly happens due to insulin resistance.

What is insulin resistance?

Insulin is a hormone that helps control blood sugar. In insulin resistance:

      Your body produces insulin

      But your cells don’t respond properly to it

      Sugar builds up in the blood

Common causes of prediabetes:

      Overweight or obesity

      Belly fat (abdominal obesity)

      Sedentary lifestyle (less physical activity)

      Unhealthy diet (high sugar & processed food)

      Family history of diabetes

      PCOS in women

      High blood pressure

      High cholesterol

Modern lifestyle is one of the biggest reasons for the rising number of prediabetes cases.

Symptoms of Prediabetes

One of the biggest challenges is that prediabetes often has no clear symptoms.

Many people feel completely normal.

However, some subtle signs may include:

      Increased thirst

      Frequent urination

      Feeling more tired than usual

      Slightly blurred vision

      Slow wound healing

      Dark patches on neck or underarms (Acanthosis Nigricans)

But remember, most people discover prediabetes only through routine blood tests.

That’s why regular health checkups are important, especially if you are above 30 years or have risk factors.

Who Is at Risk of Prediabetes?

You may be at higher risk if:

      You are above 35 years

      You are overweight

      You have a family history of diabetes

      You have high blood pressure

      You had gestational diabetes during pregnancy

      You have PCOS

      You are physically inactive

In India, diabetes is increasing rapidly, so screening is very important.

Can Prediabetes Be Reversed?

Yes - and this is the most encouraging part.

Unlike diabetes, prediabetes can often be reversed with lifestyle changes.

Studies show that losing even 5–7% of body weight can significantly reduce the risk of developing type 2 diabetes.

For example:
 If you weigh 80 kg, losing just 4–5 kg can make a big difference.

How to Prevent Prediabetes?

1. Maintain a Healthy Weight

Even small weight loss improves insulin sensitivity.

Focus on:

      Reducing belly fat

      Avoiding crash diets

      Gradual sustainable changes

2. Follow a Balanced Diet

A diabetes-friendly diet includes:

✔ Whole grains
 ✔ Green vegetables
 ✔ Fruits in moderation
 ✔ Protein-rich foods
 ✔ Healthy fats

Avoid:
 ✘ Sugary drinks
 ✘ White bread & refined flour
 ✘ Excess sweets
 ✘ Processed snacks

Tip: Replace white rice with brown rice or millets.

3. Exercise Regularly

Physical activity helps your body use insulin better.

Aim for:

      30 minutes brisk walking daily

      5 days a week

      Strength training twice weekly

Even simple activities like climbing stairs or evening walks help.

4. Reduce Sugar Intake

Hidden sugars are everywhere — in packaged juices, sauces, biscuits.

Always read labels.

Cutting down sugar can significantly improve blood sugar levels.

5. Sleep Well

Poor sleep increases insulin resistance.

Aim for:

      7–8 hours of quality sleep

      Fixed sleep schedule

6. Manage Stress

Stress hormones increase blood sugar.

Try:

      Meditation

      Yoga

      Deep breathing

      Digital detox

7. Regular Health Checkups

Monitor:

      Fasting blood sugar

      HbA1c

      Lipid profile

      Blood pressure

Early detection prevents complications.

What Happens If Prediabetes Is Not Treated?

If ignored, prediabetes may lead to:

      Type 2 diabetes

      Heart disease

      Stroke

      Kidney disease

      Nerve damage

The transition may take 5–10 years — but sometimes even faster.

Prevention is always easier than treatment.

Prediabetes in India – Why Is It Increasing?

India is known as the “diabetes capital” of the world.

Reasons include:

      High-carb diet

      Sedentary lifestyle

      Urban stress

      Genetic risk

      Lack of early screening

Many people in their 30s and even 20s are now being diagnosed with prediabetes.

Key Facts About Prediabetes

      Prediabetes affects millions of adults worldwide.

      Most people don’t know they have it.

      It can be reversed with lifestyle changes.

      Losing 5–7% body weight reduces diabetes risk significantly.

      Regular exercise improves insulin sensitivity.

      HbA1c test helps diagnose prediabetes.

      Family history increases risk.

      Early action prevents long-term complications.

Conclusion

Prediabetes is not a disease — it’s a warning.

Your body is asking for attention.

The good news is that you have time. With the right lifestyle changes, regular monitoring, and awareness, you can stop prediabetes from turning into diabetes.

If you have risk factors or family history, consider getting your blood sugar tested.

Because when it comes to blood sugar, early action makes all the difference.

FAQs

What is prediabetes in simple words?

Prediabetes means your blood sugar is higher than normal but not high enough to be diabetes. It is an early warning stage.

Can prediabetes go away?

Yes, with weight loss, healthy diet, and exercise, prediabetes can often be reversed.

What is the normal HbA1c level for prediabetes?

An HbA1c between 5.7% and 6.4% indicates prediabetes.

Does prediabetes have symptoms?

Most people have no symptoms. Some may notice increased thirst, fatigue, or dark skin patches.

How long does it take for prediabetes to become diabetes?

It can take 5–10 years, but it varies depending on lifestyle and genetics.

Is prediabetes dangerous?

If untreated, it can lead to type 2 diabetes and heart disease.

What foods should I avoid in prediabetes?

Avoid sugary drinks, sweets, white flour products, and processed foods.

How much exercise is needed for prediabetes?

At least 30 minutes of moderate exercise, 5 days a week, is recommended.

Can thin people get prediabetes?

Yes, even people with normal weight can develop insulin resistance.

Should I take medicines for prediabetes?

Lifestyle changes are the first step. In some cases, doctors may prescribe medication based on risk factors.

Neeraj Sinha
Approved By
Dr. Neeraj Sinha
Consultant - ENDOCRINOLOGY
Meet The Doctor
Book Appointment

Recent Blogs

If you’ve ever looked at your blood test report and wondered, “Is my HbA1c normal for my age?”—you’re not alone. HbA1c is one of the most important tests for understanding long-term blood sugar control, but many people don’t realise that ideal HbA1c levels can vary by age.
Continue Reading
If you’ve ever wondered “How can I increase my metabolism?” or “Why is my metabolism so slow?” — you’re not alone. Millions of people struggle with slow metabolism, which affects weight, energy, digestion, and overall health.
Continue Reading
Thyroid imbalance has become increasingly common today, especially among women, young adults, and people with hectic lifestyles. The thyroid gland is a small, butterfly-shaped gland in your neck, but it controls some of the biggest functions of your body — metabolism, energy levels, periods, weight, mood, and even your heart rate.
Continue Reading
Have you ever wondered why some people gain weight quickly while others stay the same even after eating more? Or why some people feel tired easily while others stay energetic throughout the day? A big part of the answer lies in a single process—metabolism.
Continue Reading
Have you ever wondered why, even after eating well, you sometimes feel tired, dizzy, or forgetful? One possible reason could be a Vitamin B12 deficiency.
Continue Reading
Diabetes has become one of the fastest-growing health conditions worldwide. According to the International Diabetes Federation (IDF), over 500 million adults are living with diabetes, and India alone accounts for more than 100 million cases. The good news is that lifestyle changes, particularly diet, can make a huge difference.
Continue Reading
Have you ever looked at your blood test report and wondered, “Is my sugar level normal?” Or searched online for “What’s a normal blood glucose level after eating?” You’re not alone. Blood sugar, or glucose, is something many of us track—but few truly understand.
Continue Reading
Request A Call Back
Didn't Find What You Were Looking For

Get a call back from our Health Advisor