Dietary management and risks of prediabetes and blood sugar regulation

Managing blood sugar levels is critical for preventing the progression from prediabetes to type 2 diabetes. Prediabetes is characterized by fasting blood sugar levels between 5.6 and 6.9 mmol/L, often caused by insulin resistance where cells fail to respond properly to insulin. If left unaddressed, this condition can lead to serious complications, including heart attack, stroke, vision impairment, and kidney disease.

While some individuals avoid fruit to limit natural sugar intake, whole fruits provide essential nutrients such as fiber, vitamins, and plant compounds like polyphenols. Fiber slows sugar absorption, and specific pigments like anthocyanins—found in fruits such as blueberries—have been studied for their potential to improve insulin sensitivity and blood sugar regulation. However, experts emphasize that no single food can prevent or treat diabetes; rather, management requires a holistic approach involving overall diet, portion control, and physical activity.