... leaf, sugarleaf, or simply stevia, is widely grown for its sweet leaves. As a sweetener and sugar substitute, stevia's taste has a ... in demand for low-carbohydrate, low-sugar food alternatives. Because stevia has a negligible effect on blood glucose, it is attractive ... sweetener to people on carbohydrate-controlled diets.The availability of stevia varies from country to country. In a few countries, ...