CNN —A sugar replacement called erythritol – used to add bulk or sweeten stevia, monkfruit and keto reduced-sugar products – has been linked to blood clotting, stroke, heart attack and death, according to a new study. “If your blood level of erythritol was in the top 25% compared to the bottom 25%, there was about a two-fold higher risk for heart attack and stroke. Clots can break off and travel to the heart, triggering a heart attack, or to the brain, triggering a stroke. Video Ad Feedback Study: Artificial sweeteners linked to higher stroke risk 01:33 - Source: CNNWhat is erythritol? In all three populations, researchers found that higher levels of erythritol were connected to a greater risk of heart attack, stroke or death within three years.