The ingredient xylitol is added to a number of products, but recent studies find it to have no health benefits (in sinus products) or even associated with health harms. A recent study found that xylitol is linked with an increased risk of heart attack and stroke.
Xylitol is used in a large variety of products, especially as a sugar substitute (artificial sweetener). However, the research shows that xylitol it is prothrombotic - it causes platelets to clot, and increases the risk of thrombosis or clotting of the blood.
Interestingly, when comparing xylitol vs a glucose (sugar) in a study - drinking a xylitol sweetened drink increased every measure of platelet clotting in humans, but the glucose-sweetened drink did not.
From Science Daily: Sugar substitute linked to increased risk of heart attack and stroke, study finds
Cleveland Clinic researchers found higher amounts of the sugar alcohol xylitol are associated with increased risk of cardiovascular events like heart attack and stroke. ...continue reading "Study Finds That Xylitol Is Linked To A Higher Risk of Stroke and Heart Attack"