AI Summary Overview
What is Diabetes?
Diabetes is a chronic disease characterised by high levels of glucose (sugar) content in the blood. Pancreas produce a hormone called insulin to move sugar from the blood into the cells, where it is used for energy. However, in diabetes, the body fails to produce sufficient insulin or cannot utilize it effectively. It causes blood sugar to stay in the bloodstream instead of being used by the cells.
What are the Types of Diabetes?
Diabetes can be classified into the following types:
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Type 1 DiabetesType 1 Diabetes is an autoimmune condition where the body’s immune system unknowingly attacks the insulin-producing cells in the pancreas. Thus, there is a minimal production of insulin in the body. To manage the body’s blood sugar level, people suffering from Type 1 diabetes require lifelong insulin treatment. The diagnosis is common among children and adolescents.
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Type 2 DiabetesIn Type 2 Diabetes, the body cells either do not respond properly to insulin (insulin resistance) or do not produce enough insulin to maintain normal blood sugar levels. It is the most common type of diabetes, and is often observed in adults. Some of the risk factors associated with Type 2 diabetes include obesity, sedentary lifestyle, unhealthy eating habits, and family history of the disease.
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Antibody testsThese are used to diagnose LADA. They help detect the presence of certain autoantibodies that attack insulin-producing cells in the pancreas, something not seen in Type 2 diabetes.
Apart from these three types, other less common forms of diabetes also exist, such as Latent Autoimmune Diabetes in Adults (LADA), Type 3c diabetes, Neonatal Diabetes, Maturity-Onset Diabetes of the Young (MODY), and Brittle Diabetes.
How Common is Diabetes in India?
According to the International Diabetes Federation (IDF) statistics report released in 2024, about 89 million adults in India were diagnosed with diabetes. It implies nearly 10.5% of diabetes prevalence among Indian adults.
Moreover, around 43% of these individuals were unaware of their condition. Given the rise in diabetes cases in India, the prevalence rate of the condition is expected to rise further in the next few decades, with an estimated figure of 134 million by 2045.
What are the Symptoms of Diabetes?
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Extreme thirst
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Unexplained weight loss
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Frequent urination (especially at night)
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Intense hunger
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Having mood swings or feeling irritated
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Having blurry vision.
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Persistent fatigue
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Slow-healing sores
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Blurry vision
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Frequent skin, vaginal or gum infections
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Symptoms of Type 1 Diabetes
Symptoms of Type 1 diabetes normally appear very quickly over a matter of days to a week. The symptoms tend to be noticeable, which is why it is often diagnosed early, especially in children and young adults.
In addition to the typical symptoms mentioned above, people with Type 1 diabetes commonly experience:
- Nausea, vomiting, or stomach pain
- Difficulty in breathing
- Fruity-smelling breath
- Fainting due to severe dehydration
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Symptoms of Type 2 Diabetes
The symptoms of Type 2 diabetes tend to develop gradually after years of progression. Since the symptoms are mild, people might just ignore them initially.
Some of the symptoms and warning signs that may appear include:
- Tingling, pain, or numbness in the hands and feet
- Gradual vision loss
- Sexual health problems
- Chest discomfort or pain
What Causes Diabetes?
Causes of Type 1 Diabetes
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Autoimmune Reaction: The body’s immune system wrongly attacks the insulin-producing cells in the pancreas.
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Family history: Having a parent or sibling with Type 1 diabetes increases the chances of developing it.
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Genetics: Certain genes, such as HLA complex genes, can increase the risk, but having them does not always mean a person will develop diabetes.
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Viral infection: Some viruses are believed to trigger the immune system to start attacking the pancreas in people who are already at risk.
Causes of Type 2 Diabetes
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Insulin Resistance: Type 2 diabetes develops when the body’s cells stop responding properly to insulin, causing sugar to build up in the blood.
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Unhealthy diet: Regular consumption of sugary drinks, processed foods, and high-fat meals can increase the chances of developing diabetes.
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Family History and Genetics: People are more likely to develop Type 2 diabetes if it runs in their family.
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Excess Body Weight: Being overweight, especially with extra fat around the belly, increases the risk of developing Type 2 diabetes.
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Physical Inactivity: A sedentary lifestyle reduces the body’s ability to use glucose properly, which can lead to higher blood sugar levels.
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Hormonal Conditions: Conditions such as PCOS and other hormonal imbalances can contribute to the development of Type 2 diabetes.
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History of Gestational Diabetes: Women who had diabetes during pregnancy have a higher chance of developing Type 2 diabetes later in life.
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Certain Medications: Long-term use of medications like steroids can affect blood sugar levels and increase risk. .
What are the Complications of Diabetes?
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Nerve Damage (Neuropathy): It can cause tingling, numbness, burning pain, or loss of sensation, especially in the feet and hands. It may also affect digestion, leading to nausea, constipation, or diarrhoea, and can contribute to erectile dysfunction in men
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Eye Problems (Retinopathy): Damage to the small blood vessels in the eyes can lead to blurred vision and, in severe cases, permanent vision loss or blindness.
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Kidney Damage (Nephropathy): The kidneys filtering units may get damaged over time, reducing their ability to remove waste and excess fluids from the body.
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Heart and Blood Vessel Disease: Increases the risk of heart attack, stroke, chest pain (angina), and narrowing of arteries due to poor blood circulation.
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Foot Complications: Poor blood flow and nerve damage can lead to infections, ulcers, and slow-healing wounds, which may become serious if not treated early.
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Skin and Infection Issues: Higher risk of bacterial and fungal infections due to reduced immunity and poor blood sugar control.
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Hearing loss: Hearing problems are more commonly seen in people with diabetes compared to those without the condition.
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Mental Health Impact: Depression and emotional stress are more common among people suffering from diabetes.
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Brain-related Risks: Type 2 diabetes may increase the risk of cognitive decline and conditions like Alzheimer’s disease.
How is Diabetes Diagnosed?
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Fasting Blood Sugar TestThe test aims to measure the amount of glucose present in the blood after fasting for at least 8 hours overnight.Since there is no intake of food during that period of time, the test provides insight into what your baseline blood glucose level is.
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Random Blood Sugar Test The random blood sugar test checks your blood glucose level at any time of the day, no matter when you last ate. As it does not require fasting, it is often used for a quick check.
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HbA1c Test (Glycated Hemoglobin) This test reflects the average blood sugar levels within the last 2 to 3 months by measuring how much glucose attaches to hemoglobin molecules.
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Oral Glucose Tolerance Test (OGTT) This test evaluates how the body handles glucose. After a fasting blood sample, the patient drinks a glucose-rich solution, and blood samples are taken at intervals to see how effectively the body processes sugar over time.
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Urine TestA urine test can sometimes be used to check for sugar or ketones in the urine. While it is not the most accurate way to diagnose diabetes, it can give an early warning sign and is often followed by proper blood tests for confirmation.
Normal vs Pre-Diabetes vs Diabetes Range
The following table summarises the common diabetes tests and the typical blood sugar ranges that help classify results as normal, prediabetes, or diabetes.
| Type of Test | Normal | Prediabetes | Diabetes |
| Fasting Blood Sugar Test | Less than 100 mg/dL | 100 -125 mg/dL | 126 mg/dL or higher |
| Random Blood Sugar Test | N.A. | N.A. | Moderate thinness |
| HbA1c Test (Glycated Hemoglobin) | Below 5.7% | 5.7% - 6.4% | Mild thinness |
| Oral Glucose Tolerance Test (OGTT) | Less than 140 mg/dL | 140 - 199 mg/dL | Normal |
| Urine Test | No glucose/ketones present | May show trace amounts | Presence of sugar or ketones may indicate uncontrolled levels |
How is Diabetes Managed?
Diabetes management focuses on keeping blood sugar levels within a normal range through a combination of medication, lifestyle changes, and regular monitoring.
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Management of Type 1 Diabetes
Type 1 diabetes requires lifelong insulin support because the body cannot produce insulin on its own. Management is usually structured and continuous.
- Insulin Therapy: Daily insulin injections or use of an insulin pump to replace natural insulin.
- Blood Sugar Monitoring: Frequent checking of glucose levels to prevent sudden highs or lows.
- Healthy Eating Habits: Careful balance of carbohydrates to match insulin doses.
- Regular Physical Activity: Helps improve overall glucose control.
- Routine Follow-ups: Regular doctor visits to adjust insulin and monitor health.
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Management of Type 2 Diabetes
Type 2 diabetes is mainly managed by improving how the body uses insulin, especially in the early stages.
- Lifestyle Changes: Healthy diet with controlled sugar and calorie intake.
- Physical Activity: Regular exercise to improve insulin sensitivity.
- Weight Management: Maintaining a healthy body weight to reduce insulin resistance.
- Oral Medications: Prescribed medicines to help control blood sugar levels.
- Insulin (if required): Used in advanced cases when tablets alone are not enough.
- Regular Monitoring: Keeping track of blood sugar levels to prevent complications.
Diabetes During Pregnancy
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Test your blood sugar levels as per the recommendation of the physician.
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Adhere to a balanced diet, ensuring that you maintain low levels of carbohydrates and sugars.
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Consume small amounts of food more frequently.
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Exercise daily by doing simple exercises such as walking.
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Take medications, including insulin, as instructed by your physician
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Do not miss out on the scheduled prenatal visits.
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Maintain your body weight within the medically recommended limits.
What is the Prognosis for Diabetes?
The prognosis of diabetes depends on how early it is detected and how well it is managed over time. With proper treatment, healthy lifestyle habits, and regular monitoring, many people are able to live normal and active lives.
However, if the level of blood glucose is not controlled, it can result in severe complications involving the heart, kidney, eyes, and nerves. Long-term outcomes improve significantly when patients follow medical advice consistently and maintain stable blood sugar levels.
Can Diabetes Be Reversed?
Whether diabetes can be reversed depends on its type. Type 1 diabetes cannot be reversed as the body permanently stops producing insulin, requiring lifelong insulin therapy. On the other hand, Type 2 diabetes can sometimes go into remission with major lifestyle changes such as weight loss, healthy eating, and regular physical activity. But these changes must be long-lasting to prevent diabetes from returning.
How Can I Prevent Diabetes?
You cannot prevent Type 1 diabetes, but Type 2 diabetes can sometimes be put into remission with early and consistent lifestyle changes that are as follows:
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Stay physically active for at least 30 minutes a day.
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Consume a nutritious and balanced meal.
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Maintain a healthy body weight and avoid excess abdominal fat.
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High blood pressure in the lungs (pulmonary hypertension)
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Sleep well for 7 to 9 hours at night.
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Control stress by doing things such as yoga and meditation.
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Stop consuming sugary drinks, processed food, or anything that contains sugar.
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Restrict the use of alcohol.
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Take prescribed medicines regularly.
Does Health Insurance Cover Diabetes?
Yes, health insurance in India provides coverage for both Type 1 and Type 2 diabetes. These plans are designed for individuals already diagnosed with the condition as well as those with a family history of diabetes. They help reduce the financial burden of ongoing treatment, regular medical check-ups, and diabetes-related complications. 
Health insurance for diabetes usually comes with a waiting period of up to three years, but some insurers allow customers to avail coverage for their existing diabetes condition from Day 1, depending on the specific policy terms.
How Much Health Insurance Coverage is Needed for Diabetes Treatment?
The amount of health insurance coverage needed for diabetes treatment depends on the severity of the condition, age, and risk of complications. In general, a minimum cover of around ₹5 lakh is enough to handle basic hospitalisation and routine medical needs, but it may not be sufficient in the long run since diabetes is a chronic illness.
Most experts recommend at least ₹10 lakh coverage as a standard choice because it can better manage hospital expenses, treatment of complications such as heart, kidney, or eye-related issues, and repeated admissions over time. For individuals who are older and already have Type 2 diabetes, or have additional health risks like blood pressure or cholesterol, a higher cover of ₹15 to 20 lakh is considered appropriate.
FAQs
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Q1. What foods can diabetics eat freely?
Ans: The foods that diabetics can eat freely include low-calorie and fibre rich foods like leafy vegetables, cucumbers, tomatoes, and salads. -
Q2. What is the main cause of diabetes?
Ans: The main cause of diabetes depends on the type. Type 1 diabetes is caused by the immune system attacking insulin-producing cells, while Type 2 diabetes is mainly linked to insulin resistance along with factors like obesity, unhealthy diet, lack of exercise, and genetics. -
Q3. What is a normal blood sugar level?
Ans: A normal fasting blood sugar level is below 100 mg/dL.
