High blood sugar linked to increased heart attack, stroke risk

Consuming sugar-free products might carry hidden health risks, according to a recent study that links high blood levels of the artificial sweetener xylitol to a significantly increased risk of major cardiovascular events. Researchers found that individuals with the highest concentrations of xylitol in their blood faced a 57% greater risk of experiencing a heart attack, stroke, or death compared to those with the lowest levels.

The study, presented at the European Society of Cardiology (ESC) annual congress, analyzed the health data of over 17,700 participants. Xylitol is a common sugar substitute found in many "sugar-free" items like chewing gum, toothpaste, jams, and baked goods, often chosen by consumers aiming to avoid sugar for dental health or calorie control.

Previous laboratory research had indicated that high concentrations of xylitol could potentially increase platelet activity and blood clotting. This large-scale, long-term observational study provides population-level data that supports these earlier findings, suggesting a possible mechanism for the observed increased cardiovascular risk.

However, medical experts not involved in the research emphasize that this study is observational and cannot establish a direct cause-and-effect relationship between xylitol consumption and cardiovascular events. They advise the public to maintain a balanced and varied diet, and to avoid over-reliance on single, high-concentration processed foods containing artificial sweeteners.