Actually a few studies have came to light showing that Xylitol can cause blood clotting and lead to possible heart attacks and strokes in humans.
https://www.nih.gov/news-events/nih-research-matters/xylitol-may-affect-cardiovascular-health
https://newsroom.clevelandclinic.org/2024/06/06/cleveland-clinic-led-study-links-sugar-substitute-to-increased-risk-of-heart-attack-and-stroke