Why Is Diabetes Increasing? Alarming Statistics, Common Causes, Surprising Risk Factors, and Myths Debunked

Little Wins Health · Updated July 2026 · 18 min read · Educational content only — always talk to your doctor about your own health.

Diabetes is increasing worldwide, and the latest diabetes statistics show that the number of people living with the condition continues to rise. Health experts are seeing more people diagnosed with diabetes than ever before, making it one of the fastest-growing chronic health conditions globally.

While rising obesity rates and physical inactivity remain major drivers, researchers are also exploring other factors that may be contributing to this trend.

Understanding why diabetes is increasing is the first step toward protecting your health. In this guide, you'll discover the latest diabetes statistics, the most common and surprising diabetes risk factors, who is most at risk, and practical ways to help prevent type 2 diabetes.

We'll also debunk common diabetes myths and explain what the latest research really says, so you can make informed decisions with confidence.

Is Diabetes Increasing? The Latest Statistics

Diabetes is no longer considered a disease affecting only a small portion of the population. Today, it is one of the fastest-growing chronic health conditions worldwide, placing an increasing burden on individuals, healthcare systems, and national economies.

According to the World Health Organization (WHO), the number of people living with diabetes increased from 200 million in 1990 to 830 million in 2022, more than a fourfold increase in just over three decades. This rapid rise reflects changing lifestyles, longer life expectancy, urbanization, and other factors that increase the risk of developing diabetes.

The International Diabetes Federation (IDF) estimates that approximately 589 million adults aged 20 to 79 were living with diabetes in 2024, representing 1 in every 9 adults worldwide. If current trends continue, the organization projects that the number of adults living with diabetes will increase to 853 million by 2050.

You may notice that the WHO and IDF report different totals. This is expected because the organizations use different methodologies and populations. The WHO reports broader global estimates, while the IDF focuses specifically on adults aged 20 to 79 years. Despite these differences, both organizations show the same clear trend: diabetes continues to increase worldwide.

The United States reflects the same pattern. According to the Centers for Disease Control and Prevention (CDC), more than 40 million Americans are living with diabetes, and 90% to 95% of those cases are type 2 diabetes. The CDC also estimates that approximately 115 million U.S. adults have prediabetes, a condition that significantly increases the risk of developing type 2 diabetes if left untreated.

These statistics show that millions of people are already living with elevated blood sugar levels without experiencing obvious symptoms. As a result, many individuals are not diagnosed until complications begin to develop, highlighting the importance of regular health screenings and early intervention.

Together, these figures paint a clear picture. Diabetes is increasing across every region of the world, affecting younger and older adults alike. Understanding why these numbers continue to rise is the first step toward reducing your own risk and making informed decisions about your long-term health.

The global rise in diabetes (1990–2050)

Quick facts

What Are the Common Causes of Diabetes?

Although diabetes is often discussed as a single disease, it actually refers to a group of conditions that affect how the body regulates blood sugar (glucose). Type 1 diabetes is an autoimmune condition in which the immune system mistakenly attacks the insulin-producing cells in the pancreas. Type 2 diabetes, the most common form, develops gradually when the body becomes resistant to insulin or can no longer produce enough insulin to keep blood sugar levels within a healthy range.

Because type 2 diabetes accounts for the vast majority of cases, most research on diabetes prevention focuses on the factors that contribute to insulin resistance and long-term metabolic health.

Insulin Resistance

Insulin is a hormone produced by the pancreas that helps move glucose from your bloodstream into your body's cells, where it is used for energy. When your cells stop responding to insulin as effectively as they should, the pancreas produces more insulin to compensate. Over time, this extra workload can strain the pancreas, allowing blood sugar levels to rise.

Insulin resistance often develops gradually over many years, which is why people can have prediabetes without experiencing noticeable symptoms. If insulin resistance continues to worsen, it can eventually progress to type 2 diabetes.

Excess Body Weight

Carrying excess body weight, particularly around the abdomen, is one of the strongest risk factors for developing type 2 diabetes. Abdominal fat, also known as visceral fat, is metabolically active and releases substances that can interfere with how the body responds to insulin.

It's important to remember that body weight is only one piece of the puzzle. Some people living with obesity never develop diabetes, while others at a healthy weight can develop the condition because of genetics, visceral fat, or other underlying risk factors.

Physical Inactivity

Regular physical activity helps your muscles use glucose more efficiently and improves insulin sensitivity. Spending long periods sitting or engaging in very little physical activity can reduce the body's ability to regulate blood sugar over time.

You don't need intense workouts to support your health. Walking, cycling, swimming, gardening, and other moderate activities performed consistently can all help improve insulin sensitivity and reduce the risk of type 2 diabetes.

Unhealthy Dietary Patterns

A dietary pattern that regularly includes large amounts of ultra-processed foods, refined carbohydrates, sugary drinks, and foods high in saturated fats may contribute to weight gain, insulin resistance, and poor blood sugar control over time.

On the other hand, eating a balanced diet built around the best foods for managing blood sugar, such as vegetables, fruits, whole grains, legumes, lean proteins, nuts, and healthy fats, can support healthy blood sugar regulation and overall metabolic health.

Family History

Your genes can influence how your body produces and uses insulin, meaning diabetes often runs in families. Having a parent or sibling with type 2 diabetes increases your risk, but it does not guarantee that you will develop the condition.

Lifestyle choices remain important, even for people with a strong family history. Regular physical activity, balanced eating habits, maintaining a healthy weight, and routine health screenings can help lower the risk or delay the onset of type 2 diabetes.

Age

Although type 2 diabetes can develop at any age, the risk generally increases as people get older. This is partly because aging is often associated with reduced muscle mass, lower physical activity levels, and a greater likelihood of developing other health conditions that affect blood sugar regulation.

However, increasing numbers of children, teenagers, and young adults are now being diagnosed with type 2 diabetes, highlighting that age is no longer the only factor to consider.

Gestational Diabetes

Gestational diabetes develops during pregnancy when the body cannot produce enough insulin to meet the increased demands of pregnancy. Blood sugar levels usually return to normal after giving birth, but women who have had gestational diabetes have a higher risk of developing type 2 diabetes later in life.

Regular follow-up care and healthy lifestyle habits after pregnancy can help reduce that long-term risk.

Polycystic Ovary Syndrome (PCOS)

Women with polycystic ovary syndrome (PCOS) are more likely to develop insulin resistance, making them more susceptible to prediabetes and type 2 diabetes. While not everyone with PCOS will develop diabetes, healthcare providers often recommend regular blood sugar screening as part of ongoing care.

Managing body weight, staying physically active, and following a balanced eating pattern can help improve insulin sensitivity and lower the risk of diabetes in women with PCOS.

What Are the Surprising Risk Factors for Diabetes?

Scientists now understand that diabetes develops through a complex interaction of genetics, lifestyle, environment, and metabolism. Some of these factors are well established, while others are still being investigated. Learning about these emerging risk factors can help you better understand your overall health without causing unnecessary worry. Many are beyond your control, but healthy lifestyle habits can still make a meaningful difference.

Endocrine-Disrupting Chemicals (EDCs)

Endocrine-disrupting chemicals are substances that can interfere with the body's hormone system. They are found in everyday items such as some plastic containers, food packaging, pesticides, cosmetics, and household products.

Researchers are studying whether long-term exposure to certain EDCs may increase the risk of insulin resistance and type 2 diabetes by disrupting hormones involved in blood sugar regulation and metabolism. While the evidence continues to grow, scientists are still working to understand how much exposure is needed to affect health and which chemicals pose the greatest risk.

Simple steps, such as avoiding heating food in plastic containers, choosing glass or stainless steel when possible, and washing fruits and vegetables before eating them, may help reduce unnecessary exposure.

Air Pollution

Air pollution is most commonly associated with lung and heart disease, but growing evidence suggests it may also contribute to diabetes.

Tiny airborne particles, particularly fine particulate matter (PM2.5), can trigger inflammation and oxidative stress throughout the body. Over time, these changes may reduce insulin sensitivity and increase the risk of developing type 2 diabetes.

You don't need to avoid going outdoors altogether. On days with poor air quality, limiting prolonged outdoor exercise, using indoor air filtration if available, and checking local air quality reports may help reduce exposure.

Gut Microbiome Imbalances

Your digestive system is home to trillions of bacteria that help digest food, produce vitamins, support the immune system, and influence metabolism. Together, these microorganisms are known as the gut microbiome.

Researchers have found that people with type 2 diabetes often have different gut bacteria compared with those without diabetes. Although scientists are still determining whether these changes are a cause or a consequence of diabetes, maintaining a healthy gut microbiome through a balanced diet rich in fibre, fruits, vegetables, legumes, and fermented foods may support overall metabolic health.

TOFI: Thin Outside, Fat Inside

Not everyone who develops type 2 diabetes is overweight or obese. Some people appear to have a healthy body weight but carry excess visceral fat, the fat stored around internal organs.

This pattern is sometimes referred to as TOFI, or Thin Outside, Fat Inside. Visceral fat is more closely linked to insulin resistance than the fat stored just beneath the skin. As a result, people with a normal body weight can still have an increased risk of diabetes if they carry high amounts of visceral fat.

This is one reason healthcare providers consider more than body weight when assessing diabetes risk.

Poor Sleep

Sleep plays an important role in regulating hormones that influence appetite, insulin sensitivity, and blood sugar levels.

Consistently getting too little sleep or experiencing poor-quality sleep has been linked to an increased risk of insulin resistance and type 2 diabetes. Conditions such as obstructive sleep apnoea can further increase that risk by repeatedly disrupting normal sleep patterns.

Most adults should aim for 7 to 9 hours of quality sleep each night as part of an overall healthy lifestyle.

Artificial Sweeteners

Artificial sweeteners are often marketed as a healthier alternative to sugar because they contain few or no calories.

Some studies suggest that certain sweeteners may influence the gut microbiome or glucose metabolism, while others have found little or no effect. Because research findings remain mixed, experts have not concluded that artificial sweeteners directly cause diabetes.

If you use sugar substitutes, moderation remains a sensible approach. Replacing sugary drinks with water is still one of the most effective ways to reduce added sugar intake.

Certain Medications

Some medications can increase blood sugar levels or reduce insulin sensitivity in certain individuals. Examples include some corticosteroids, certain antipsychotic medications, and a few medicines used to treat autoimmune conditions.

This does not mean people should stop taking prescribed medication without medical advice. The benefits of treatment often outweigh the potential risks, and healthcare providers can monitor blood sugar levels when necessary.

If you're concerned about how a medication may affect your diabetes risk, speak with your healthcare provider before making any changes.

Research Spotlight: The SCAN Enzyme

Recent research has identified an enzyme known as SCAN as a potential contributor to insulin resistance. Early laboratory studies suggest that blocking this enzyme may improve the body's response to insulin.

While these findings are promising, they are still in the early stages of research. More clinical studies involving people are needed before this discovery can influence diabetes prevention or treatment.

For now, SCAN represents an exciting area of scientific investigation rather than an established cause of diabetes.

Who Is Most at Risk of Developing Diabetes?

While diabetes can affect people of all ages and body types, certain factors make it more likely to develop, particularly type 2 diabetes. Some of these, such as your family history or age, can't be changed. Others, including physical activity, diet, and weight management, are areas where healthy habits can help reduce your risk.

According to the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), you may have a higher risk of developing type 2 diabetes if you:

• Are 45 years or older. The risk of type 2 diabetes increases with age, although diagnoses among younger adults and children have also become more common.
• Have prediabetes. Blood sugar levels that are higher than normal, but not yet high enough for a diabetes diagnosis, significantly increase the likelihood of developing type 2 diabetes.
• Have overweight or obesity. Carrying excess body weight, especially around the abdomen, can contribute to insulin resistance.
• Have a parent or sibling with diabetes. A family history of diabetes increases your risk because both genetic and shared lifestyle factors can play a role.
• Had gestational diabetes during pregnancy. Women who develop diabetes while pregnant have a greater chance of developing type 2 diabetes later in life.
• Have polycystic ovary syndrome (PCOS). PCOS is commonly associated with insulin resistance, increasing the risk of prediabetes and type 2 diabetes.
• Have high blood pressure or unhealthy cholesterol levels. These conditions are often linked with metabolic syndrome, which increases the risk of diabetes and cardiovascular disease.
• Live a mostly sedentary lifestyle. Spending long periods sitting and getting little regular physical activity can reduce insulin sensitivity over time.
• Belong to certain ethnic groups. Some populations have a higher risk of developing type 2 diabetes, including people of African, Hispanic or Latino, Native American, Alaska Native, Asian American, Pacific Islander, and South Asian backgrounds. Researchers believe this increased risk results from a combination of genetic, environmental, socioeconomic, and lifestyle factors rather than ethnicity alone.
• Have a history of heart disease or stroke. These conditions often share many of the same underlying risk factors as type 2 diabetes, including insulin resistance, obesity, high blood pressure, and unhealthy cholesterol levels.

It's important to remember that risk factors are not guarantees. Many people with multiple risk factors never develop diabetes, while others with few obvious risk factors receive a diagnosis. That's why regular health checkups and screening tests are so important, especially if you have concerns about your personal risk.

Common Diabetes Myths Debunked

Myth #1: Eating Sugar Causes Diabetes

Type 2 diabetes develops because of a combination of factors, including genetics, insulin resistance, excess body weight, physical inactivity, and long-term dietary patterns. While regularly consuming foods and drinks high in added sugars can contribute to weight gain and increase the risk of insulin resistance, enjoying sugar occasionally is not the direct cause of diabetes. A balanced eating pattern matters much more than any single food.

Myth #2: Only People with Obesity Develop Type 2 Diabetes

Although overweight and obesity are significant risk factors, they are not the only ones. Genetics, age, family history, visceral fat, PCOS, gestational diabetes, and certain medications can all increase diabetes risk. Some people with a healthy body weight also develop type 2 diabetes, while many people living with obesity never develop the condition.

Myth #3: People with Diabetes Can't Eat Fruit

Whole fruits contain natural sugars, but they also provide fibre, vitamins, minerals, and antioxidants. Fibre helps slow the absorption of sugar into the bloodstream, making whole fruit a healthier choice than sugary snacks or sweetened drinks.

Portion sizes and the overall eating pattern remain important, so it's best to choose whole fruits rather than fruit juices whenever possible.

Myth #4: Type 2 Diabetes Only Affects Older Adults

Although the risk increases with age, healthcare providers are diagnosing type 2 diabetes more often in younger adults, teenagers, and even children. Rising rates of childhood obesity, reduced physical activity, and dietary changes have all contributed to this trend.

Myth #5: If You Have Prediabetes, You'll Definitely Develop Diabetes

Prediabetes is a warning sign, not a guarantee. Many people are able to delay or prevent type 2 diabetes by becoming more physically active, eating a balanced diet, maintaining a healthy weight, and following their healthcare provider's advice. Early action can make a significant difference.

Myth #6: Diabetes Is Contagious

Diabetes is not caused by a virus or bacteria, and it cannot be spread through touching, sharing food, kissing, coughing, or any other form of casual contact. Although researchers are still studying what triggers type 1 diabetes in some people, neither type 1 nor type 2 diabetes is contagious.

This misconception may seem surprising, but surveys have shown that some people still mistakenly believe diabetes can spread from person to person.

Myth #7: Insulin Means You've Failed

Some people with diabetes can manage their condition through lifestyle changes and oral medications, while others eventually need insulin because their pancreas no longer produces enough of the hormone. This is a natural progression for many people and does not mean they did something wrong.

The goal of diabetes treatment is to keep blood sugar within a healthy range and reduce the risk of complications, regardless of which treatment plan is needed.

Myth #8: You Can Always Tell If Someone Has Diabetes

Type 2 diabetes often develops gradually, and some people have no noticeable symptoms for years. Others may experience increased thirst, frequent urination, unexplained weight loss, blurred vision, fatigue, or slow-healing wounds.

Because symptoms may be mild or absent, regular health screenings are especially important for people with risk factors.

Myth #9: People with Diabetes Can't Eat Sugar Ever

A diabetes diagnosis doesn't mean you can never enjoy a slice of birthday cake or your favorite dessert again. What matters most is your overall eating pattern, the amount of carbohydrates you consume, and portion sizes, rather than avoiding sugar entirely.

Many people with diabetes can include small amounts of foods containing added sugar as part of a balanced meal plan, especially when blood sugar is well managed. Choosing nutrient-rich foods most of the time while enjoying treats occasionally is often a more realistic and sustainable approach than trying to avoid sugar completely.

Your healthcare provider or a registered dietitian can help you develop a meal plan that fits your individual health needs and blood sugar goals.

Frequently Asked Questions About Diabetes

Final Thoughts

Diabetes is becoming more common around the world, but a diagnosis, a family history, or a risk factor is never the whole story. Some things you can't change, and that's okay. What you can do is start where you are, with what you have. You don't need to overhaul your life overnight, and you certainly don't need to be perfect.

This is the heart of Little Wins Health: real progress is built from small, doable steps, not dramatic ones. Choosing a balanced meal. Going for a short walk after dinner. Getting a proper night's sleep. Booking that checkup you've been putting off. Learning one new thing about your body, like you just did.

None of those feel like much on their own. But little wins add up. Repeated gently, day after day, they grow into habits that quietly protect your health for years to come. So be kind to yourself, celebrate the small stuff, and take the next step whenever you're ready. You've got this. 💚

References

• World Health Organization — Diabetes Fact Sheet
• International Diabetes Federation — Diabetes Atlas (11th Edition)
• CDC — National Diabetes Statistics Report
• National Institute of Diabetes and Digestive and Kidney Diseases — Diabetes Overview
• National Institute of Diabetes and Digestive and Kidney Diseases — Risk Factors for Type 2 Diabetes
• American Diabetes Association — Diabetes Risk Factors
• American Diabetes Association — Diabetes Myths
• National Institute of Environmental Health Sciences — Endocrine Disruptors
• Case Western Reserve University — SCAN Enzyme and Insulin Resistance Research

Medical disclaimer: This article is for general education only. It is not medical advice and is not a substitute for diagnosis or treatment by a qualified clinician. Always consult your doctor before changing your diet, exercise, medication, or monitoring routine.