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reventing Diabetes

Small Steps Can Make a Big Difference

Chances are, you know someone who has diabetes. It might even be you. Diabetes is one of the most common disorders in the U.S. It affects about 1 in 9 Americans. Diabetes raises your risk for serious health problems. It can damage the eyes, kidneys, nerves, and heart, and it is linked to some types of cancer.

Now, what if you learned that there’s a low-cost, scientifically proven way to greatly reduce your chances of getting type 2 diabetes, the most common type? Would you give it a try?

More than two decades ago, a landmark NIH-supported study, called the Diabetes Prevention Program (DPP), released its results. It found that people at high risk for diabetes were much less likely to get the disorder if they lost a little weight through healthy eating and physical activity. Their risk of getting diabetes dropped by nearly 60% compared to people who did not aim to make healthy changes.

For those over age 60, the results were even more striking. Their risk of getting diabetes dropped by 71% when they made healthy changes. The benefits were so clear that the study ended a year early, after just three years. Participants in the comparison group were encouraged to also make the healthy changes to reduce their diabetes risk.

DPP has had a lasting influence on medical care in the U.S. and around the world. Since its initial results were reported, lifestyle change programs based on the findings have become widely available across the country.

A 10-year follow-up study showed that people in the original treatment group delayed diabetes by about four years. A later study found benefits even 22 years after the study began, with people in the lifestyle-change group having about a 25% reduced risk of developing diabetes.

“Even though the initial treatments lasted only three years, participants did have longer-term health benefits,” says Dr. William Knowler, an NIH diabetes expert.

NIH-supported researchers continue to study new and proven ways to help people prevent or delay type 2 diabetes. But we already know that taking steps to prevent or manage diabetes can lower your risk of developing diabetes-related health problems.

Are You at Risk?

Diabetes is a disease that occurs when your blood glucose, also called blood sugar, is too high. Glucose is your body’s main source of energy. Normally, a hormone made by the pancreas called insulin helps glucose get into your cells to be used for energy. If you have diabetes, your body doesn’t make enough insulin or use insulin properly. Glucose then stays in your blood and doesn’t reach your cells.

Anyone can get type 2 diabetes, even children. But certain factors can raise your risk. You’re more likely to develop type 2 diabetes if you are at least 35 years old or have a family history of diabetes. Black Americans, Hispanic/Latino Americans, American Indians, and Asian Americans are also at higher risk.

People who are overweight or have obesity and people who don’t get enough physical activity are also more likely to develop the disease. But these are changeable factors.

About 1 in 3 American adults has a condition called prediabetes. It occurs when your blood sugar is higher than normal, but not yet high enough to be called diabetes. Most people with prediabetes don’t realize they have it. That’s because prediabetes tends to have few symptoms, and many people don’t get screened.

“We can diagnose prediabetes and diabetes with a very simple blood test known as a hemoglobin A1C. You don’t need to fast to do this test,” says Dr. Tannaz Moin, a physician and diabetes researcher at the University of California, Los Angeles. The A1C test reflects your average levels of blood sugar over the past three months.

“Prediabetes is viewed as a very strong risk factor for type 2 diabetes. But not everyone with prediabetes goes on to develop type 2 diabetes,” Moin adds. “That’s why it’s important to be screened and talk with your medical providers about your risk factors and things that you can do to prevent type 2 diabetes if you’re at risk.”

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