Rebaudioside M is considered the gold standard of stevia sweeteners due to its exceptional taste quality. Found naturally in stevia leaves at very low concentrations (typically <0.1%), Reb M is commercially produced through bioconversion or enzymatic processes from more abundant steviol glycosides. It has a rapid onset of sweetness, clean mid-palate sweetness, and short-duration aftertaste — characteristics that closely mimic sugar. Reb M has received GRAS status and is used in premium food and beverage applications where taste quality is paramount. Its superior organoleptic properties justify its higher cost compared to Reb A.