Her physician, Dr. Evans, ordered an A1C test, which came back in the prediabetic range.

WSJ: Wider Testing to Fight Diabetes Before It Hits

According to the CDC, 79 million Americans are prediabetic, which means their glucose readings fall between 100 and 125 while fasting.

CNN: Reversing diabetes is possible

Panagiotakos of Harakopio University, Athens, found the diet had beneficial effects against five components of a prediabetic condition called the metabolic syndrome.

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The CDC has estimated that 40% of the U.S. population is diabetic or prediabetic and that number could be 50% by 2020.

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So when you're prediabetic, it's easier to turn those numbers around.

CNN: Reversing diabetes is possible

"That's why we are working on a program right now that goes into the community and reaches those who are at risk of being prediabetic or diabetic, " Magee said.

CNN: Reversing diabetes is possible

Many primary-care doctors around the country "fail to recognize the mild aberrations which identify people as being prediabetic or diabetic, " says James Lederer, Novant's vice president for clinical improvement.

WSJ: Wider Testing to Fight Diabetes Before It Hits

This is also true for people who are prediabetic.

CNN: Reversing diabetes is possible