Sweetener in products can increase blood clotting, increasing the risk of dangerous complications, according to the European Heart Journal. The study Health experts have issued an urgent warning as research links a popular low-calorie sugar substitute to an increased risk of heart attack, stroke, and cardiovascular-related deaths. A new study published in the European Heart Journal has shown that a certain type of sweetener may harm our health. Xylitol, a sugar alcohol, is used as an additive and is 40% lower in calories than real sugar. It is naturally present in small amounts in fruits and v…