Stevioside is a new typed natural sweetener extracted from the composite herbage ---stevia. Stevioside is a kind of good sweetener instead of cane sugar that can treat diabetes, hypertension partly and can also treat adiposity, cardiovascular disease, gastritis and acid stomach as an auxiliary method. The stevioside is a stable and non fermented substance with fresh status for a long term and no metabolism, cumulation and poison in the body, so its safety was passed inspection of international organization FAO and WHO. The stevioside is used widely in Japan, Korea and European and American developed nations and regions and is renowned as the third sugar resource in the world.
