Also known as Diabetes Mellitus, Hyperglycemia, High Blood Sugar
Type 1 diabetes
Type 1 diabetes is caused by an autoimmune reaction in which the immune system attacks the insulin-producing beta cells of the pancreas, leading to their destruction. As a result, there is very little or no insulin production, which affects blood glucose control.
Although the exact cause of this process is not fully understood, it is believed that genetic and environmental factors, such as viral infections, toxins, or dietary influences, play a role. This type of diabetes occurs most commonly in children and young adults.
Type 2 diabetes
Type 2 diabetes is caused by the body's inability to respond properly to insulin, resulting in insulin resistance. This makes the hormone insulin ineffective, prompting the body to produce more insulin. Consequently, the pancreas fails to meet the body's increasing demand for insulin, leading to inadequate insulin production and high blood glucose levels.
Most cases of type 2 diabetes progress through a stage known as prediabetes, where the cells do not respond normally to insulin.
Other types of diabetes
Apart from Type 1 and Type 2 diabetes, there are other forms of diabetes to be aware of:
Note: Impaired glucose tolerance (IGT) and impaired fasting glycaemia (IFG) are intermediate conditions in the transition between normality and diabetes. Individuals with IGT or IFG are at high risk of progressing to type 2 diabetes, although this is not inevitable.
Depending upon the type, there are several risk factors for diabetes. These include:
Although there are not many risk factors for type 1 diabetes, some known factors that increase the risk include:
Type 2 diabetes is common in adults, but it is also increasingly seen in older children due to rising childhood obesity. Factors that increase the risk of type 2 diabetes include:
According to the IDF, women with prior gestational diabetes mellitus (GDM) are at a 7.4-fold risk of developing type 2 diabetes compared to women with normal blood glucose levels during pregnancy. This risk is higher 3 to 6 years post-delivery. Factors that increase the risk of gestational diabetes include:
The common lab tests include blood tests and urine tests. Blood tests are:
The random blood glucose test measures the levels of glucose circulating in the blood. This test is done to diagnose diabetes and can be taken at any time of the day without fasting. However, other tests are required to confirm the diagnosis. It is performed as part of a routine preventive health check-up or if you have symptoms of high blood glucose (hyperglycemia).
According to the American Diabetes Association guidelines for diabetes testing, the values for random blood glucose test are as follows:
The fasting blood glucose test is a common test prescribed for diabetes. It measures glucose levels in the blood after fasting (empty stomach). Ideally, you should not eat or drink anything except water for 8-12 hours before the test. It is the simplest and fastest test to diagnose and monitor diabetes.
According to the American Diabetes Association guidelines for diabetes testing, the values for FPGT are as follows:
This test measures glucose levels in the blood 2 hours after the last meal. It is usually recommended to screen for prediabetes and diabetes types 1 and 2 and to monitor treatment efficacy. The test is generally recommended when blood glucose levels fall between 140 and 200 mg/dl.
According to the American Diabetes Association guidelines for diabetes testing, the values for PPBG are as follows:
This blood test measures a person’s average blood glucose level over the past 2 to 3 months. It is ideally used to assess how well diabetes is managed with medication. If fasting and postprandial levels are high, HbA1c is advised to confirm the diagnosis.
According to the American Diabetes Association guidelines for diabetes testing, the values for HbA1c are as follows:
This test checks blood glucose levels before and 2 hours after consuming a sweet drink (usually a glucose solution). It helps determine how well your body processes glucose, aiding in the diagnosis of diabetes.
According to the American Diabetes Association guidelines for diabetes testing, the values for OGTT are as follows:
If diagnosed with diabetes, you may need to undergo several health tests periodically. These include:
According to the American Heart Association, your blood pressure should be less than 120/80 mmHg. Keeping blood pressure under control reduces the risk of diabetes-related complications such as heart attacks, blindness, or kidney damage. Get your blood pressure checked at every doctor’s visit or twice a month. Self-monitoring and maintaining a blood pressure diary are recommended if you have high blood pressure coexisting with diabetes.
Visit an ophthalmologist once a year for a detailed eye examination. The doctor will check for any damage to the nerve tissues at the back of the eye (retina), as diabetes may lead to diabetic retinopathy and cataracts.
It is important to visit your doctor for a foot examination at least once a year to check your pulse and reflexes. You may also be examined for unhealed cuts, infections, sores, or loss of feeling in your feet.
Cholesterol is present in your blood as HDL (good cholesterol) and LDL (bad cholesterol). In diabetes, LDL levels and triglycerides tend to increase, while HDL levels decrease, raising the risk of heart disease and stroke.
Annual kidney function tests (blood tests) and urine tests are recommended. In diabetics, blood vessels in the kidneys may be injured, impairing their ability to filter blood properly, which can affect kidney health.
Get examined every 6 months by a dentist for your gums and teeth, as high blood glucose levels can lead to oral problems such as gingivitis, periodontitis, oral thrush, and dry mouth.
These should be done annually to determine liver health by measuring proteins, liver enzymes, or bilirubin levels in your blood. Type 2 diabetes is associated with liver function impairment, increasing the risk of fatty liver disease, liver cirrhosis, and liver failure.
If you have been taking metformin for a long time, it is important to check your Vitamin B12 levels, as metformin may cause Vitamin B12 deficiency. Periodic measurement of Vitamin B12 levels is especially recommended if you have anemia or peripheral neuropathy.
Prevention of Diabetes
With simple lifestyle changes such as diet control, staying active, maintaining a healthy weight, and avoiding vices, you can lower your risk of type 2 diabetes. Here are a few tips to get started.
1. Make healthy food choices
2. Watch your weight
3. Exercise regularly
4. Manage stress better
5. Go for regular health check-ups
6. Quit smoking
Diabetes can be treated with medications and injections along with a few lifestyle modifications. Based on your blood glucose level, your doctor might recommend medicines or injections to control diabetes. Some of the common types of medicines for diabetes include:
This includes insulin (mainly human insulin), which increases the uptake of glucose by the cells and helps to control diabetes. There are five different types of insulin available currently, recommended based on the severity of the condition:
Here’s more on how to use insulin injection for diabetes.
Insulin pumps are small-sized computer devices that deliver small doses of short-acting insulin continuously, mimicking how the pancreas works. It provides a steady flow throughout the day and night, known as basal insulin, and an extra dose during meals, called bolus, based on the body’s insulin requirements. You simply attach it to your body using an infusion set. Talk to your doctor if you want to know more about insulin pumps to manage your diabetes.
For some people with type 1 diabetes, a pancreas transplant may be an option. Islet transplants are also being studied. With a successful pancreas transplant, you would no longer need insulin therapy. However, transplants aren't always successful and may pose serious health risks in some cases.
Also known as weight loss surgery, bariatric surgery helps to reduce fat through surgical means. Although it is not specifically considered a treatment for type 2 diabetes, individuals with type 2 diabetes who are obese and have a body mass index higher than 35 may benefit from this surgery.
Whether you’re trying to prevent or control diabetes, your nutritional needs are virtually the same as everyone else, so no special foods are necessary. However, certain modifications in terms of quantity and type of food might be required.
Carbohydrates have a significant impact on your blood sugar levels—more so than fats and proteins—so you need to be smart about the types of carbs you consume. Limit refined carbohydrates like white bread, pasta, and rice, as well as soda, candy, packaged meals, and snack foods. Focus on high-fiber complex carbohydrates—also known as slow-release carbs. They are digested more slowly, thus preventing your body from producing too much insulin.
There is mixed perception about the intake of fruits for diabetes. Some people believe that diabetics should completely cut down on fruits from their diet while others think that one can include as many fruits as they want as they don’t impact blood glucose levels. However, neither is true. It is best to include fruits as an integral part of your daily meal plan while monitoring the carbohydrate content. Here is a quick guide to help you with your daily fruit needs:
Exercises are designed to help people with diabetes avoid problems that can result from unwise exercise choices. Aerobic activity is one of the effective exercise options to control diabetes. When done at moderate intensity, it raises your heart rate and makes you sweat, thereby helping you maintain an optimal blood glucose level. Some common forms of aerobic exercises include:
Insulin deficit, if left unchecked over the long term, can cause damage to many of the body’s organs, leading to disabling and life-threatening health complications such as:
GDM imposes immediate risks for both mother and fetus and can also affect future health throughout their lives. The immediate complications for the mother include:
The health complications in the baby include:
The science of Ayurveda manages diabetes through a combination of activities that include exercise (Vyayam), dietary regulation (Pathya), panchakarma (bio-purification), and medicines. It is best to consult an Ayurveda consultant before taking any Ayurvedic medicine for diabetes. Some household herbs and spices that you can include in your diet are:
Defined as a complementary medicine, homeopathy primarily focuses on improving the functioning of the pancreas to produce insulin. Homeopathy experts rely on the patient’s history and temperament to devise a constitutional medication. However, it is recommended to use homeopathic medicines only if prescribed by the homeopath and alongside the usual course of medications suggested.
Yoga asanas help ease stressful thoughts and improve mental health in diabetics. Restorative yoga involves yoga poses and healing through relaxation techniques with conscious breathing, while power yoga has been found beneficial for weight loss, a risk factor for diabetics. It has been studied for controlling both the symptoms and complications associated with type 2 diabetes mellitus.
This technique uses needles to treat chronic pain. Acupuncture may be effective in treating diabetes and preventing and managing complications of the disease.
Massage therapy can be incorporated into relaxation therapy and serves another purpose that can be particularly useful for diabetics. The stress-reducing benefits of massage can help control counter-regulatory stress hormones and assist the body in using insulin more effectively.
As diabetes is a chronic health problem, it is imperative to make small changes in your lifestyle to manage the condition effectively. Here are a few measures to include in your care plan.
It is essential for a person with diabetes to accept the condition and be well-informed. Learn about the symptoms, potential complications, practical management strategies, and the importance of treatment. This includes:
Stress, anxiety, and depression are common among individuals with diabetes. According to the CDC, diabetics are 2 to 3 times more likely to suffer from depression than those without diabetes. Many individuals with these mental health issues remain undiagnosed or untreated, which can impair diabetes control and increase the risk of complications.
It is important to monitor your mental health and be aware of warning signs of depression, which include:
If you experience any of these symptoms, consult your doctor for appropriate diagnosis and treatment.
Additionally, manage stress and anxiety with simple strategies such as:
Getting sick is a part of life; however, individuals with diabetes need to be extra cautious as they are more prone to infections. It is wise to plan for sick days by:
Diabetics on medication or insulin can experience low blood glucose levels, especially if they skip meals, eat less, or exercise more than usual. In cases of diabetic emergencies, consult your doctor immediately.
A diabetes care plan can be divided into four key measures:
Regular health check-ups are a good strategy to prevent complications related to diabetes.
References