What are risk factors for type 2 diabetes? All you need to know

Learn risk factors for type 2 diabetes and what you can do to reduce your risk of developing this chronic condition.

Do risk factors for type 2 diabetes mean the worst?

Type 2 diabetes doesn’t sneak up on you overnight. It builds quietly over the years and is influenced by your genes, habits, lifestyle, and diet. Some type 2 diabetes risk factors can be changed, while others are out of your control. Still, just because you carry some of the risk factors does not mean you’ll develop type 2 diabetes. Small changes can help reduce your risk of type 2 diabetes.

Non-modifiable risk factors for type 2 diabetes

These are factors you can’t change, but they can help you understand your baseline risk.

• Age: Type 2 diabetes risk increases with age, especially after age 45. Aging is accompanied by shifts in fat distribution, chronic low-grade inflammation, and changes in insulin-producing cells that affect how your body handles glucose. Hormonal changes that occur during menopause raise blood sugar and increase the risk of type 2 diabetes.
• Family history: Genetics influence how your body produces and uses insulin. If a parent or sibling has type 2 diabetes, your risk is higher. Family history isn’t destiny, but it is a signal worth taking seriously.
• Race and ethnicity: Certain populations—including African American, Hispanic, American Indian, Alaska Native, and some Asian American groups—have higher rates of type 2 diabetes. Importantly, research suggests that these differences are not just biological; they’re also shaped by social, environmental, and access-related factors.
• Gestational diabetes: If you had diabetes during pregnancy, your risk of developing type 2 diabetes is significantly higher.

Modifiable risk factors for type 2 diabetes

These are the areas where your daily habits can make a real impact.

• Sleep: An essential component of your blood sugar regulation. Poor sleep raises cortisol, which makes your body less responsive to insulin and alters hormones that control hunger and fullness. Research shows that getting 7 to 8 hours of sleep per night may be the best for supporting healthy blood sugar.
• Physical inactivity: Regular movement helps your body use insulin more effectively. Conversely, a sedentary lifestyle increases the risk of type 2 diabetes. Replacing sitting time with moderate movement, even just going for a quick walk, improves your body’s ability to manage blood sugar. Aim for 150 minutes of moderate-intensity aerobic exercise weekly.
• Diet: What you eat directly impacts your risk of type 2 diabetes. Eating patterns high in packaged snacks, fast food, sweetened beverages, and processed meats—collectively known as ultra-processed foods—significantly increase the risk of type 2 diabetes. One study found that people who consumed the most ultra-processed foods had a 46% higher risk of developing type 2 diabetes than those who consumed the least. Other research observed a 13% higher risk of diabetes for every 10% increase in the amount of ultra-processed foods consumed. Conversely, diets rich in whole grains, vegetables, legumes, nuts, and healthy fats like avocado tend to be protective against type 2 diabetes.
• Overweight and obesity: Excess body fat, especially around the abdomen, can adversely impact metabolic health by releasing inflammatory compounds that impact insulin signaling. This leads your pancreas to pump out more insulin to lower your blood sugar. Over time, your pancreas can’t keep up, leading to elevated blood sugar. Even modest weight loss or shifts in body composition can significantly impact diabetes risk. Just a 5-7% reduction in body weight can meaningfully influence your risk of type 2 diabetes.
• Other health conditions: Having other medical conditions—such as high blood pressure, metabolic dysfunction-associated steatotic liver disease (MASLD), polycystic ovary syndrome (PCOS), and high cholesterol—increases the risk of developing type 2 diabetes.
• Prediabetes: The immediate precursor to type 2 diabetes, prediabetes is when your blood sugar is slightly elevated and outside of the normal range. Left untreated, prediabetes becomes diabetes. Importantly, prediabetes does not mean you will develop type 2 diabetes. Reversal is possible with lifestyle modifications, such as prioritizing lean proteins, reducing saturated fat intake, boosting fiber intake, and replacing refined carbohydrates with whole grains.

While you can’t change your genetics or age, many of the most impactful risk factors for type 2 diabetes are within your control. Prioritizing sleep, moving your body regularly, and building a balanced, minimally processed eating pattern go a long way toward protecting your long-term health.

Think of prevention as a series of small, sustainable choices, not a single overhaul. Over time, these small changes add up to lower your risk of type 2 diabetes.

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