At a Glance Stevia (Stevia rebaudiana), a perennial shrub native to South America, has a long history of use as a natural sweetener. Steviol glycosides, including rebaudiosides A, D and M are what provide the sweet taste, with Reb A being the sweetest Despite hundreds of years of safe use of stevia, the U.S. Food and Drug Administration has labeled stevia leaf and crude stevia … Continue reading Buyer Beware: GMO Stevia Is Everywhere