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Understanding Borderline Diabetes: Signs, Symptoms, and More

What is borderline diabetes?

Borderline diabetes, also called prediabetes, is a condition that develops before someone gets type 2 diabetes. It’s also known as impaired fasting glucose or glucose intolerance. It basically means your blood sugar levels are higher than normal, but they’re not quite high enough to be considered diabetes.

During the prediabetes phase, your pancreas usually still produces enough insulin in response to ingested carbohydrates. The insulin is less effective at removing the sugar from the bloodstream, though, so your blood sugar remains high. This condition is called insulin resistance.

If you have prediabetes, you should know you’re not alone. In 2015, it was estimated that 84.1 million people age 18 and older had the condition. That’s 1 in 3 Americans.

Having prediabetes doesn’t mean you’ll definitely develop diabetes. It is a warning of what could lie ahead, however. People with prediabetes have a 5 to 15-fold higher risk for type 2 diabetes than someone with normal blood sugar levels. Those chances increase if you don’t make any healthy changes to your diet or activity habits.

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Early symptoms

Early warning signs

“Prediabetes is not pre-problem,” says Jill Weisenberger, MS, RD, CDE, and author of “Diabetes Weight Loss Week by Week.”

Someone with insulin resistance in its early stages can develop type 2 diabetes if it continues long enough. Only 10 percent of people with prediabetes even know they have it because they don’t display any symptoms.

“Often, people consider these symptoms part of their normal day, so they’re ignored,” says Toby Smithson, RDN, CDE, a spokesperson for the Academy of Nutrition and Dietetics and co-author of “Diabetes Meal Planning and Nutrition for Dummies.”

Risk factors

Borderline diabetes risk factors

Any of these risk factors can increase your chances of developing prediabetes:

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Diagnosis

Determining if you have borderline diabetes

Prediabetes can be a silent condition, so getting a regular wellness checkup is important for early detection. If you think you might have borderline diabetes, discuss your concerns with your doctor.

If your doctor is concerned you may have prediabetes, they’ll most likely perform a hemoglobin A1c (HbA1c) test or an oral glucose tolerance test (OGTT).

HbA1c is an indicator of your blood sugar patterns over the last two to three months, so it’s often a better overall picture than a single fasting blood sugar check. An HbA1c level between 5.7 and 6.4 indicates prediabetes.

Complications

Potential complications of borderline diabetes

High blood glucose levels, especially if they’re left untreated, can affect other systems in your body. This can leave you vulnerable to a variety of health risks and chronic health conditions. For example, uncontrolled diabetes can lead to:

The high insulin levels that come with insulin resistance can cause additional problems.

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Lifestyle changes

The power of lifestyle change

A large, multicenter research study called the Diabetes Prevention Program looked into how lifestyle changes could help prevent diabetes. What they found should give you a lot of hope.

With modest weight loss and exercise, study participants reduced their risk of developing diabetes by 58 percent over three years.

The power of healthy food and exercise habits can’t be overstated. Take charge of your health by focusing on simple dietary and lifestyle changes.

Eat healthier

Focus on whole foods and complex carbohydrates such as beans, grains, and starchy vegetables. Pass on the simple sugars, like those in processed baked goods. Those can raise blood sugar without providing wholesome nutrition.

For help in planning meals to prevent diabetes, make an appointment with a dietitian. The American Diabetes Association also offers great tips on diabetes-friendly cooking.

Move more

Aim for 150 minutes of exercise each week. Any activity is better than nothing. Even walking counts.

Lose weight

If you’re overweight, losing weight can help reduce your risk. A healthier diet and increasing your activity level should help you achieve this goal. Even losing 5 to 10 percent of your body weight will help reduce your risk for diabetes.

Medications

If you do have prediabetes, your doctor may even prescribe a medication, such as metformin (Glumetza, Glucophage, Fortamet, Riomet). This can also help increase insulin sensitivity and keep blood glucose levels in check.

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Takeaway

Start today

Start any diet and lifestyle changes today. It’ll give you the best chance of preventing diabetes in the first place while also avoiding any potential complications from uncontrolled diabetes.

While finding out this early diagnosis can be upsetting, it doesn’t have to mean you’ll develop diabetes, says Dr. Kristine Arthur, MD, of MemorialCare Medical Group in Fountain Valley, California.

“It can be reversed and you can stop the progression to diabetes,” Arthur says.

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