Stevia is derived from the leaves of the Stevia rebaudiana plant. Unlike sugar, stevia contains compounds known as steviol glycosides, which provide 200 to 300 times more sweetness without adding any calories. It is non-glycemic, meaning it doesn't raise blood sugar levels, and it doesn’t feed the bacteria that lead to tooth decay. Stevia is not only safe for diabetics and weight-watchers—it’s also heat-stable, making it suitable for hot drinks, cooking, and baking.