top of page
  • Writer's pictureDr. Karuturi Subrahmanyam

Does Eating Sugar Cause Diabetes?

Diabetes is a condition that affects how your body regulates blood sugar levels. There are different types of diabetes, such as type 1, type 2 and gestational diabetes. Some people may wonder if eating sugar can cause diabetes or make it worse. The answer is not so simple.

Sugar and Type 1 Diabetes

Type 1 diabetes is an autoimmune disease that occurs when your immune system attacks your pancreas and destroys its ability to produce insulin. Insulin is the hormone that helps move sugar from your blood into your cells for energy. Without insulin, sugar builds up in your blood and can cause serious complications.

Type 1 diabetes is not caused by eating sugar or any other food. It is mainly influenced by genetics and environmental factors, such as viruses or toxins. There is no way to prevent or cure type 1 diabetes, but it can be managed with insulin injections or pumps, blood sugar monitoring, diet and exercise.

Sugar and Type 2 Diabetes

Type 2 diabetes is the most common form of diabetes. It occurs when your body either does not produce enough insulin or becomes resistant to the insulin it produces. This leads to high blood sugar levels that can damage your organs and nerves.

Type 2 diabetes is not directly caused by eating sugar, but it is associated with diet and lifestyle factors that can increase your risk of developing it. These include being overweight or obese, being physically inactive, having a family history of diabetes, having prediabetes or gestational diabetes, and being older than 45 years.

Eating too much sugar can contribute to weight gain, which is a major risk factor for type 2 diabetes. Sugar also provides calories without any nutrients, which can lead to nutrient deficiencies and poor health. Additionally, some studies have suggested that consuming large amounts of sugar-sweetened beverages, such as soda or juice, may increase the risk of type 2 diabetes independently of weight.

However, eating sugar in moderation as part of a balanced diet does not cause type 2 diabetes. Sugar can be enjoyed occasionally as long as you keep track of your total carbohydrate intake and blood sugar levels. Carbohydrates are the main source of energy for your body and include sugars, starches and fibers. You can choose healthy sources of carbohydrates, such as fruits, vegetables, whole grains, beans and dairy products, and limit refined or processed carbohydrates, such as white rice, pastries, candy and soda.

Sugar and Gestational Diabetes

Gestational diabetes is a type of diabetes that develops during pregnancy. It affects about 2% to 10% of pregnant women and usually goes away after delivery. However, it can increase the risk of complications for both the mother and the baby, such as high blood pressure, preterm birth, large birth weight and low blood sugar.

Gestational diabetes is not caused by eating sugar or any other food. It is thought to be triggered by hormonal changes that make your body more resistant to insulin. Some factors that can increase your risk of gestational diabetes include being overweight or obese before pregnancy, having a family history of diabetes, being older than 25 years, having a previous history of gestational diabetes or a large baby, and belonging to certain ethnic groups.

Eating a healthy diet during pregnancy can help prevent or manage gestational diabetes. You should aim to eat a variety of foods from all the food groups, including carbohydrates, protein, fat, vitamins and minerals. You should also limit foods that are high in sugar, fat or salt, such as cakes, cookies, chips and fried foods. Your doctor or dietitian can help you plan a meal plan that suits your needs and preferences.


Eating sugar does not directly cause diabetes, but it may play a role in increasing your risk of type 2 diabetes or gestational diabetes if you eat too much of it or if you have other risk factors. You can enjoy sugar in moderation as part of a balanced diet, but you should also pay attention to your carbohydrate intake and blood sugar levels. If you have diabetes or are at risk of developing it, you should consult your doctor or dietitian for advice on how to manage your condition and prevent complications.

Dr. Karuturi Subrahmanyam, MD, FRCP (London), FACP (USA)

Internal Medicine Specialist

Kify Hospital



Phone : 85000 23456

Recent Posts

See All

Table Salt vs. Rock Salt: Which is Healthier?

Salt is a staple in many kitchens around the world, essential for flavoring food and preserving it. However, with various types of salt available, it can be challenging to know which one is the health


bottom of page