Harvard Health Letter

Prediabetes is associated with stroke risk

People with higher-than-normal blood glucose levels but who do not have diabetes—a condition known as prediabetes—may still be at a higher risk of stroke, according to a study published June 7 in the medical journal BMJ. The researchers, who examined 15 previous studies involving more than 760,000 people, found that prediabetes is associated with an elevated stroke risk. The percentage risk varied slightly, depending on the criteria used to define "prediabetes," but the takeaway message was clear: if you are diagnosed as prediabetic, you should take that as a warning to better manage your diabetes risk factors, such as weight and blood sugar levels, to help protect against stroke.

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