Ib qho teeb meem loj tshaj plaws ntawm cov qab zib uas muaj suab thaj - tsis muaj teeb meem li cas los yog organic nws yuav - yog tias nws packs li ntau, yog tsis ntau dua, calorie ntau tshaj li cov laus qab rooj. Stevia extract , uas yog muab tau los ntawm nplooj ntawm Stevia rebaudiana cog neeg rau Central thiab South America, daws qhov teeb meem: nws yog ob qho tagnrho-natural thiab calorie-dawb. "Stevia tsis yog qabzib," notes New York University kws tshawb fawb Marion Nestle.
Ntev heev hauv Paraguay, Brazil, Tuam Tshoj thiab Nyij Pooj, stevia ua dav dav hauv Teb Chaws Asmeskas hauv ob peb lub xyoos dhau los, tom qab Kev Tswj Xyuas Khoom Noj thiab Tshuaj Yeeb (FDA) tau pub nws siv ua zaub mov noj rau lub Kaum Ob Hlis 2008. Hauv nws daim tawv nqaij, Stevia Extract yog kwv yees li 40 zaus sweeter dua sucrose. Tias yog vim li cas nws yog tov nrog lwm cov khoom xyaw thaum muag li hmoov nyob rau hauv cov npe ntawm Truvia, Pure Via thiab Stevia nyob rau hauv lub Raw.
Qhov tseem ceeb muaj hauv Truvia yog cawv qab zib hu ua erythritol (86% ntawm Truvia los ntawm qhov hnyav), uas yog carbohydrate, tiam sis yeej tseem muaj tsis muaj calories vim peb lub cev tsis muaj lub enzymes rau metabolize nws. Stevia nyob rau hauv Raw thiab Pure Ntawm ob qho tib si kuj muaj qab zib dextrose, aka glucose, tab sis muaj tsawg heev li ntawm ib qho kev noj qab haus huv uas muaj calories.