When you keep your blood sugar level as low as the levels of people who don’t have diabetes, your have little risk of having a heart attack. But when you let your sugar level rise just a little, that risk goes up a lot.
Healthy people who don’t have diabetes have a fasting blood sugar level of less than 6 mmol/l, according to researchers at the University of Copenhagen. That’s the equivalent of an A1C level of 5.4. The Journal of the American College of Cardiology just published their study in the issue for June 19/26, 2012.
The researchers drew on three observational studies that included 80,522 Danes. Observational studies cannot prove a cause, but the researchers went further. They used “a Mendelian randomization approach … to circumvent confounding and reverse causation.”