That stick of sugar-free gum you pop after lunch could carry a heart risk that most people have never heard of. A large new study presented at the European Society of Cardiology (ESC) congress in Munich has linked high blood levels of xylitol, the sweetener in many sugar-free gums, toothpastes, jams and yoghurts, to a higher risk of strokes, heart attacks and death.
What the study actually found
Researchers looked at blood samples from 17,710 people across two long-running cohorts, the Canadian Longitudinal Study on Aging and the UK’s EPIC-Norfolk study. Comparing the quarter of participants with the highest xylitol levels against the quarter with the lowest, the researchers reported a 57% higher risk of a major adverse cardiovascular event over six years. Even across a 30-year follow-up, the elevated risk held at roughly 18%.
| Blood xylitol level | Cardiovascular event risk |
|---|---|
| Highest quarter (top 25%) | 57% higher over 6 years |
| Highest quarter vs lowest | 18% higher over 30 years |
| Dose relationship | Higher levels tied to higher risk |
Why xylitol matters
Xylitol is a sugar alcohol found naturally in small amounts in some fruits and vegetables, but food makers add it in concentrations up to 1,000 times higher to sweeten products without the calories of sugar. It shows up in chewing gum, toothpaste, throat lozenges, sugar-free jams, yoghurts, ice cream and many “low calorie” or “no added sugar” snacks, so it is easy to consume far more than people realise.
What the researchers say
Dr Marco Witkowski of Charité University Hospital in Berlin, who presented the findings, noted that earlier work by his team found xylitol can enhance the ability of platelets to form clots. He stressed that the new results are observational, so they show an association rather than proof that xylitol directly causes heart problems, and said “further studies are warranted, especially as the amount of xylitol in products continues to increase.”
What it means for Filipino consumers
For people in the Philippines, the practical takeaway is not to panic but to read labels. The heart-healthy habits that already protect against cardiovascular disease still matter, and cutting back on ultra-processed, heavily sweetened foods is the safest move. If you are reaching for “sugar free” snacks or gum as the healthier option, check the ingredients for xylitol and treat it like any sweetener: fine in moderation, not something to consume constantly.
This article is for informational purposes only and is not medical advice. It summarises a single observational study and does not establish that xylitol causes cardiovascular events. Consult a qualified healthcare professional about your own diet and heart health.
