Type 1 Diabetes: What it is, symptoms, causes, and treatment

Type 1 diabetes is a chronic disease that affects thousands of people worldwide. It often appears unexpectedly during childhood or adolescence, although it can be diagnosed at any age. Despite the challenges that come with the diagnosis, it is entirely possible to live safely and independently with the right solutions.

Find out what type 1 diabetes is, what its symptoms and causes are, and how to manage day-to-day life with greater peace of mind and quality of life.

What is type 1 diabetes?

Type 1 diabetes is a chronic auto-immune disease that directly affects the way the body manages blood glucose. 

In a person without diabetes, the pancreas produces insulin — the hormone responsible for allowing sugar to enter the cells and be used as a source of energy. In type 1 diabetes, this process no longer occurs.

This happens because the immune system, which normally protects the body against infections, mistakenly attacks the pancreatic cells responsible for producing insulin. As a result, the body stops producing this essential hormone, leading to an accumulation of glucose in the blood. Treatment necessarily involves the administration of insulin from the moment of diagnosis, making it an integral part of the daily routine.

Unlike other forms of diabetes, this condition is not related to lifestyle habits and cannot be prevented.

Type 1 diabetes vs. type 2 diabetes: what is the difference?

Type 1 diabetes and type 2 diabetes are distinct conditions, with different causes, developments and forms of treatment. Both affect the way the body regulates blood glucose levels, but they do so through different mechanisms, which has a direct impact on how they are managed on a day-to-day basis.

In the case of type 1 diabetes, it is treated as an auto-immune illness in which the person stops producing insulin. This means that the person becomes dependent on the daily administration of this hormone from the moment of diagnosis. It is most commonly diagnosed in children and young people, although it can occur at any age, and symptoms tend to appear rapidly and noticeably.

In contrast, type 2 diabetes is generally associated with insulin resistance or insufficient production of this hormone over time. It is more common in adults, particularly from a certain age onwards, and is frequently associated with factors such as lifestyle, diet, and physical inactivity. Unlike type 1 diabetes, it can develop more gradually and, in many cases, can initially be managed with lifestyle changes and oral medication.

Type 1 diabetes: causes

Despite being extensively studied, type 1 diabetes continues to raise questions regarding its exact causes. It is known, however, that it results from a combination of factors involving both genetic predisposition and environmental elements.

Some people may have a greater likelihood of developing the condition due to their genetic inheritance. However, this predisposition alone does not explain everything. External factors, such as certain viral infections, can trigger an immune system response that leads to the destruction of insulin-producing cells.

It is important to emphasise that type 1 diabetes is not caused by diet, lifestyle or individual behaviour. It is a condition that develops independently of these variables, often without any clear prior warning signs.

Type 1 diabetes: symptoms

The symptoms of type 1 diabetes tend to appear relatively quickly and can progress over a matter of days or weeks. This sudden onset is one of the features that distinguishes this condition from other forms of diabetes.

Some of the most common signs include: 

• intense and persistent thirst;
• increased frequency of urination;
• constant feeling of hunger (even after meals);
• unexplained weight loss;
• fatigue and tiredness;
• changes in vision.

If not identified in time, type 1 diabetes can progress to more serious conditions, such as diabetic ketoacidosis, which requires urgent medical intervention. For this reason, recognising these signs early is essential to ensure a prompt diagnosis and begin appropriate treatment.

Type 1 diabetes: diagnosis

The diagnosis of type 1 diabetes is based on measuring blood glucose levels. When these values are persistently elevated, a clinical assessment must be carried out to confirm the presence of the condition.

The most commonly used tests include fasting blood glucose measurement, the glucose tolerance test, and haemoglobin A1c analysis, which provides an indication of blood glucose levels over the preceding months. In some cases, specific tests may also be carried out to identify auto-immune markers, helping to distinguish type 1 diabetes from other forms of the condition. In cases of acute presentation, ketones and acid-base balance should also be assessed to rule out ketoacidosis.  

A timely diagnosis is essential to begin treatment promptly and prevent associated complications.

Type 1 diabetes: treatment

Managing type 1 diabetes involves establishing a consistent routine built around several key practices that, together, help to keep blood glucose levels stable and prevent complications.

1. Insulin administration

Since the body ceases to produce insulin, it must be administered daily to ensure that glucose is properly utilised by the body. This can be achieved through multiple injections throughout the day or by using devices such as insulin pumps, which enable a more continuous and precisely adjusted delivery.

The amount of insulin required varies from person to person and depends on factors such as diet, physical activity, and blood glucose levels. For this reason, medical follow-up is essential to adjust treatment safely and effectively.

2. Blood glucose monitoring

Regular blood glucose monitoring is one of the cornerstones of type 1 diabetes management. It makes it possible to understand how the body responds to meals, physical activity, and insulin administration, as it helps make informed decisions throughout the day.

This monitoring can be carried out through individual blood glucose readings that use glucose meters or continuous monitoring systems, thereby providing a more complete picture of fluctuations over time. Maintaining this level of control helps prevent episodes of hypoglycaemia (low blood glucose) and hyperglycaemia (high blood glucose).

3. Balanced diet

Diet plays a central role in managing type 1 diabetes. Rather than eliminating foods, what matters most is understanding how different nutrients — particularly carbohydrates — affect blood glucose levels.

Keeping to regular mealtimes, making balanced food choices, and adjusting food intake aligned with insulin administration are all practices that contribute to better disease management. Follow-up with a healthcare professional — particularly in cases of type 1 diabetes, changes to routine, frequent symptoms, pregnancy, or questions about carbohydrate counting — is recommended in order to establish an appropriate dietary plan.

4. Physical Activity

Physical activity is highly recommended for people with type 1 diabetes, as it contributes to blood glucose control and overall well-being. However, exercise can affect blood glucose levels in different ways, so it is essential to plan and adjust both diet and insulin in accordance with the intensity and duration of the activity. Exercise should be incorporated into the daily routine in a safe and consistent manner, as part of a structured plan overseen by healthcare professionals.

5. Regular medical follow-up

Follow-up with healthcare professionals is essential to ensure effective management of type 1 diabetes over time. Regular appointments make it possible to assess blood glucose control, adjust treatment and prevent potential complications.

They also provide an opportunity to address any questions, review routines, and adapt the management strategy to individual needs, which may change across the different stages of life.

Type 1 diabetes: frequently asked questions

Below, we answer some of the most common questions about type 1 diabetes. 

Is type 1 diabetes hereditary?

There is a genetic predisposition, but the majority of people diagnosed do not have close relatives with the condition. Type 1 diabetes is an auto-immune condition in which the immune system attacks the insulin-producing cells; the genetic factor is only one of several components, alongside other environmental factors.

Can people with type 1 diabetes play sport?

Yes, physical exercise helps improve insulin sensitivity and cardiovascular health. However, it requires careful planning: blood glucose must be monitored before, during, and after exercise, and insulin doses or carbohydrate intake adjusted according to the intensity of the session.

Is it possible to prevent type 1 diabetes?

There is no way to prevent type 1 diabetes. Unlike type 2 diabetes, where diet and exercise can reduce the risk, type 1 diabetes develops independently of lifestyle habits. The focus of current medicine is on early diagnosis and effective management to prevent long-term complications.


 

Regain your well-being with Quilaban Diabetes Solutions

Managing type 1 diabetes can bring daily challenges, but there are now more and more ways to make the process simple, safe, and tailored to each individual. Regular blood glucose monitoring, medical follow-up, and access to appropriate solutions make all the difference.

Quilaban Diabetes offers innovative solutions to simplify diabetes management, enabling you to monitor the condition in a simple, safe manner and with an improved quality of life.