Another study is raising concern about the safety of the widely used sugar alcohol sweetener, erythritol, a low-calorie sugar substitute found in keto foods.

Sugar substitutes are everywhere. How safe are they to eat? Manufacturers are responding to growing demand by using nonsugar sweeteners to replace some or all of the sugar in many food and drinks.

A new study linking the low-calorie sugar substitute xylitol to an increased risk of heart attack or stroke has once again raised questions about the risks and benefits of sugar substitutes.