Incredibly, one in four Americans over age 20 has prediabetes -- and most don't even know it. Being prediabetic means that your blood glucose levels are higher than normal but short of being classified as diabetic levels. Studies show that most people with prediabetes go on to develop type 2 diabetes within 10 years, unless they lose weight and make dietary and exercise changes.
Because prediabetes develops gradually over years, it's often said that there are no obvious symptoms. But it's possible to notice certain warning signs of growing insulin resistance, the inability to process the energy in food properly that's a key aspect of prediabetes, says Beth Reardon, director of nutrition for Duke Integrative Medicine at Duke University.
Paying close attention to such warning signs gives you plenty of time to make changes before the situation progresses to type 2 diabetes, she says.
"These symptoms usually occur in tandem with one another; together they create a bigger picture that says insulin resistance is going on," Reardon says. "Some signs can be measured, some we feel, some we can just see."
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