
Xylitol Linked to Higher Heart Risk in New Observational Study
A new observational study presented at the 2026 European Society of Cardiology (ESC) Congress found that higher blood levels of xylitol, a common sugar substitute, are associated with an increased risk of major cardiovascular events. The research, led by Dr. Marco Witkowski of Charité University Hospital in Berlin, analyzed data from over 17,700 participants in Canada and the UK. Findings indicate a 57% higher risk of heart attack, stroke, or death over six years for those with the highest xylitol levels, and an 18% higher risk over 30 years. While the study does not prove causation, it suggests a dose-dependent relationship. Experts emphasize that more research is needed, particularly as xylitol use in products grows. Meanwhile, health professionals recommend focusing on overall heart-healthy diets rather than solely swapping sweeteners.





