Written by Dr. Matthew Capozzi, DPM, FACFAS, CWS (board-certified foot surgeon and wound specialist) · Medically reviewed by the CircuFiber Scientific Advisory Board · Updated: October 27, 2026
The main risk factors for diabetes are a family history of diabetes, excess weight, a poor diet, physical inactivity, smoking, high blood pressure, age over 45, and certain ethnic backgrounds. Some of these, such as age and genetics, cannot be changed. Many of the most powerful ones are hidden in everyday lifestyle habits, and those can be changed. Lifestyle changes can often prevent or delay the onset of type 2 diabetes, which is why understanding the risks associated with diabetes matters for everyone, not just people who have already been diagnosed.
Key Takeaways
- Diabetes risk factors fall into two groups: modifiable factors you can change (diet, activity, weight, blood pressure, smoking, alcohol) and non-modifiable factors you cannot (age, family history, race or ethnicity).
- The hidden lifestyle dangers are a diet heavy in processed food and sugary drinks, sitting for most of the day, smoking, and heavy alcohol use. Each one raises the risk of type 2 diabetes on its own.
- Smokers are approximately 30-40% more likely to develop type 2 diabetes than non-smokers, according to the Centers for Disease Control and Prevention (CDC).
- Several medical conditions raise diabetes risk, including polycystic ovary syndrome (PCOS), hypertension, a history of gestational diabetes, pancreatitis, cystic fibrosis, and hemochromatosis.
- Weight is the single biggest modifiable factor: the article's cited research reports that overweight people have about 7 times the risk and people with obesity 20-40 times the risk of people at a normal weight.
- Regular screening matters most if you have prediabetes or several risk factors, because early detection leads to better outcomes.
What are the risk factors for diabetes?
The risk factors for diabetes are aspects of your health or lifestyle that can increase your likelihood of developing the disease, and they are generally divided into two categories: modifiable and non-modifiable. Simply put, diabetes is a medical condition characterized by high blood sugar levels over prolonged periods. It's a chronic disease that occurs either when the pancreas doesn't produce enough insulin or when the body can't effectively use the insulin it produces. A family history of diabetes, obesity, poor diet, and lack of physical activity are all key risk factors that can increase a person's likelihood of developing diabetes. It's not only about genetics; lifestyle choices play a significant role too.
Modifiable risk factors (the ones you can change)
Modifiable risk factors are those you can change through daily habits and medical care:
- Unhealthy eating habits
- Lack of physical activity
- Overweight or obesity
- High blood pressure
Our companion article on controllable diabetes risk factors goes deeper on each of these; this article focuses on the lifestyle dangers that people tend to overlook.
Non-modifiable risk factors (the ones you cannot change)
Non-modifiable risk factors, on the other hand, are those beyond your control:
- Age (people over 45 have a higher risk)
- Family history of diabetes
- Race or ethnicity (African Americans, Hispanics, Native Americans and Asian Americans have a higher risk)
Age is another factor we need to consider when talking about diabetes risk factors. As we get older, our bodies react differently to insulin, making us more susceptible to this disease. Ethnicity also plays a part - certain ethnic groups have been found to be at higher risk than others.
| Modifiable Risk Factors | Non-Modifiable Risk Factors |
|---|---|
| Unhealthy eating habits | Age (over 45) |
| Lack of physical activity | Family history |
| Overweight or obesity | Race/Ethnicity |
| High blood pressure |
By understanding these risks associated with diabetes, we're better equipped to make healthier decisions that can help manage and prevent this chronic condition. For instance, choosing nutritious foods and staying active can go a long way in reducing our chances of getting diabetes. It's also important to remember that while some things like age and genetics aren't within our control - many elements contributing to diabetes certainly are. With knowledge as our guide and preventative measures at our disposal like regular check-ups with healthcare providers - we're empowered in our fight against diabetes.
Which hidden lifestyle habits raise your risk of type 2 diabetes?
Four everyday habits quietly raise the risk of type 2 diabetes more than most people realize: a processed-food diet, physical inactivity, smoking, and heavy alcohol use. Diabetes, particularly type 2, is closely tied to lifestyle choices. We've seen how the decisions we make daily can significantly affect our risk of developing this chronic condition.
Poor diet
Poor diet is a predominant factor in diabetes risk. Consuming processed foods high in sugar, unhealthy fats and sodium regularly predisposes us to obesity – a primary trigger for type 2 diabetes. High intake of red and processed meats, sugary drinks, and low consumption of fruits, vegetables, whole grains also increase the likelihood. See our list of foods to avoid with diabetes for specifics.
Physical inactivity
Physical inactivity is another key contributor. The less active we are, the higher our risk. Regular exercise helps control weight, uses up glucose as energy thus reducing blood sugar levels. Read more on how exercise lowers blood sugar.
Smoking
Smoking isn't just harmful to your lungs; it's a significant risk factor for diabetes too. Smokers are approximately 30-40% more likely to develop type 2 diabetes than non-smokers according to the CDC. Our article on smoking and diabetes risk explains why.
Alcohol
Alcohol consumption may also influence diabetes risk but its relationship isn't straightforward. Moderate drinking might offer some heart benefits but excessive alcohol use can lead to pancreatitis which may cause type 2 diabetes by destroying insulin-producing cells.
| Factors | Risk Increase |
|---|---|
| Poor Diet | High |
| Inactivity | High |
| Smoking | 30-40% |
| Alcohol Abuse | Potential |
Here are some suggestions on how you can mitigate these risks:
- Embrace a balanced diet packed with fruits, vegetables, lean proteins and limit intake of processed junk.
- Get active! Find exercises you enjoy doing.
- Quit smoking or better yet don't start at all.
- Keep alcohol consumption moderate or abstain altogether if possible.
These changes won't guarantee immunity from diabetes but they will certainly lower your risk while improving overall health. It's about making conscious choices every day that steer us towards healthier living - remember it's not an overnight transformation but a journey worth embarking upon for our well-being.
Which medical conditions increase your risk of diabetes?
Polycystic ovary syndrome (PCOS), hypertension, a history of gestational diabetes, pancreatitis, cystic fibrosis, and hemochromatosis are the medical conditions most often linked to a higher risk of diabetes. We're not talking just about type 2 diabetes here – these conditions could also increase risk for type 1 and gestational diabetes.
Polycystic ovary syndrome (PCOS)
Polycystic ovary syndrome (PCOS) tops our list. It's a hormonal disorder common among women of reproductive age. Women with PCOS may have infrequent or prolonged menstrual periods or excess male hormone (androgen) levels. The ovaries may develop numerous small collections of fluid (follicles) and fail to regularly release eggs.
Hypertension (high blood pressure)
Next on the list is hypertension, or high blood pressure. Studies show that people with hypertension are at a higher risk of developing diabetes, especially if they don't manage their blood pressure effectively.
Gestational diabetes
Gestational diabetes during pregnancy is another significant factor. If you've had gestational diabetes before, it increases your chances of developing type 2 diabetes later in life. Learn the symptoms of gestational diabetes and our strategies for preventing type 2 diabetes after gestational diabetes.
Pancreatitis, cystic fibrosis and hemochromatosis
Other conditions that can damage the pancreas or disrupt insulin production include:
- Pancreatitis
- Cystic fibrosis
- Hemochromatosis
| Condition | Description |
|---|---|
| Polycystic ovary syndrome | Hormonal disorder causing enlarged ovaries with small cysts |
| Hypertension | High blood pressure condition |
| Gestational diabetes | High blood sugar during pregnancy |
| Pancreatitis | Inflammation in pancreas |
| Cystic fibrosis | Life-threatening disorder damaging lungs and digestive system |
| Hemochromatosis | Body absorbs too much iron from food |
We should also touch base on certain lifestyle factors such as obesity and physical inactivity which significantly raise one's risk of developing diabetes. Remember, understanding these predispositions doesn't mean we're destined for a diagnosis! Rather, it offers us an opportunity to take preventive measures early on. With regular check-ups, a balanced diet, exercise regime and proper medication when necessary – we can stay one step ahead of these risks.
How much does weight affect your diabetes risk?
Excess weight is the most powerful modifiable risk factor for type 2 diabetes. Studies reveal that overweight individuals have a 7 times higher risk of developing diabetes than those with normal weight. And if you're obese? The risk skyrockets to 20-40 times higher. Maintaining a healthy weight is therefore crucial, and our guide to weight loss strategies for diabetes covers practical ways to get there.
| Weight Category | Risk Multiplication Factor |
|---|---|
| Overweight | x7 |
| Obese | x20 - x40 |
How can you reduce your risk of developing diabetes?
You can reduce your risk of developing diabetes by keeping a healthy weight, moving most days of the week, eating a diet built on whole foods, and getting screened regularly if you carry other risk factors. When it comes to reducing the risk of developing diabetes, we've got some practical steps that can make a big difference. For a fuller plan, see our guide on how to prevent type 2 diabetes.
Move for at least 30 minutes most days
Regular physical activity cannot be overstated. It doesn't just help manage your weight but also improves insulin sensitivity. Aim for at least 30 minutes of moderate-intensity exercise like brisk walking or cycling most days of the week.
Build your diet around whole foods
Diet changes that lower diabetes risk are simple and sustainable:
- Opt for whole grains over refined carbs.
- Include plenty of fruits and vegetables.
- Limit red and processed meats.
- Go easy on sugary drinks and snacks.
Remember, moderation is key here!
Get screened if you have risk factors
Don't underestimate the power of regular screenings especially if you have prediabetes or other risk factors. Early detection often leads to better outcomes. Knowing the symptoms of prediabetes helps you catch rising blood sugar before it becomes type 2 diabetes.
We know that change isn't always easy but every small step towards healthier habits can significantly reduce your diabetes risk. It's about making conscious decisions each day – choosing an apple instead of chips, taking the stairs instead of elevator – these might seem minor but they add up over time. By adopting these lifestyle modifications we've discussed today, you'll not only lower your chances for diabetes but also pave way for overall health improvement!
When should you see a doctor about your diabetes risk?
See a doctor for a blood sugar test if you are over 45, are overweight, have a parent or sibling with diabetes, had gestational diabetes, have PCOS or high blood pressure, or belong to a higher-risk ethnic group, even if you feel well. Ask sooner if you notice increased thirst, frequent urination, unexplained fatigue, blurred vision, or slow-healing cuts. Your doctor can order a simple fasting glucose or A1C test; our article on diabetes tests and diagnosis explains what each one measures. If you already have diabetes, ask for a yearly foot check as part of your routine care, and read our guide on taking good care of your diabetic feet.
Frequently asked questions about diabetes risk factors
What are the risk factors for type 2 diabetes?
The risk factors for type 2 diabetes are being overweight or obese, physical inactivity, a diet high in processed food and sugary drinks, smoking, high blood pressure, age over 45, a family history of diabetes, a history of gestational diabetes or PCOS, and being African American, Hispanic, Native American, or Asian American. Most people who develop type 2 diabetes have several of these at once.
What are the risk factors for type 1 diabetes?
Type 1 diabetes is an autoimmune condition, so its risk factors are different from type 2 and are mostly non-modifiable. Having a parent or sibling with type 1 diabetes raises the risk, and it most often appears in children, teens, and young adults, although it can develop at any age. Diet, weight, and activity do not cause type 1 diabetes.
What are the risk factors for gestational diabetes?
Risk factors for gestational diabetes include being overweight before pregnancy, being older than 25, a family history of type 2 diabetes, PCOS, having had gestational diabetes in a previous pregnancy, and belonging to a higher-risk ethnic group. Having gestational diabetes also raises your own risk of type 2 diabetes later in life.
What are the modifiable risk factors for diabetes?
The modifiable risk factors for diabetes are the ones you can change: unhealthy eating habits, lack of physical activity, overweight or obesity, high blood pressure, smoking, and heavy alcohol use. Addressing even one of them lowers your risk, and addressing several lowers it further.
If diabetes runs in my family, will I definitely get it?
No. A family history raises your risk but does not make diabetes inevitable. Genetics load the dice, but weight, diet, activity, and smoking determine much of whether type 2 diabetes actually develops, which is why lifestyle changes can often prevent or delay it even in people with a strong family history.
Why does diabetes risk go up after age 45?
Diabetes risk rises after 45 because the body becomes less responsive to insulin with age, muscle mass tends to fall, and weight tends to rise. As we get older, our bodies react differently to insulin, making us more susceptible to the disease, which is why routine screening is recommended from age 45 even without other risk factors.
References, studies and sources
- Pan, A., Wang, Y., Talaei, M., Hu, F. B., & Wu, T. (2015). Relation of active, passive, and quitting smoking with incident type 2 diabetes: a systematic review and meta-analysis. The Lancet Diabetes & Endocrinology, 3(12), 958-967. https://doi.org/10.1016/s2213-8587(15)00316-2
- Narayan, K. V., Boyle, J., Thompson, T. J., Sorensen, S. W., & Williamson, D. P. (2003). Lifetime risk for diabetes mellitus in the United States. JAMA, 290(14), 1884. https://doi.org/10.1001/jama.290.14.1884
- Centers for Disease Control and Prevention. Smoking and Diabetes. https://www.cdc.gov/tobacco/campaign/tips/diseases/diabetes.html
- Centers for Disease Control and Prevention. Diabetes. https://www.cdc.gov/diabetes/
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Diabetes. https://www.niddk.nih.gov/health-information/diabetes
About the author: Dr. Matthew Capozzi, DPM, FACFAS, CWS, is a board-certified foot surgeon through the American Board of Foot and Ankle Surgery. He is a Diplomate of the American Academy of Wound Management and Fellow of the American College of Foot and Ankle Surgeons. He completed a three-year residency program in Foot and Ankle Reconstructive Surgery at St. Francis Hospital & Medical Center in Hartford, CT in 2010. Dr. Capozzi is a board-certified Wound Specialist® granted by the American Academy of Wound Management.
Healthcare disclaimer: Always consult your physician before beginning any program. This general information is not intended to diagnose any medical condition or to replace your healthcare professional. If you experience any pain or difficulty, stop and consult your healthcare provider. CircuFiber socks are a general wellness product intended to promote a temporary increase in local blood flow and circulation; they are not intended to diagnose, treat, cure, or prevent any disease. Individual results vary.
