Stevia (also called sweetleaf, sweet leaf or sugarleaf) is a genus of about 150 species of herbs and shrubs belonging to the Asteraceae (sunflower) family, native to subtropical and tropical South America and Central America (north to Mexico). The species are found in the wild in semi-arid habitats ranging from grassland to mountain terrain. Stevia does produce seeds, but only a small percentage of them germinate. Planting cloned stevia is a much more effective way of reproduction.
Uses
For centuries, the GuaraniNative Americans of Paraguay and Brazil used Stevia species, primarily S. rebaudiana which they called ka'a he'ê ("sweet herb"), as a sweetener in yerba mate and medicinal teas for treating such conditions as obesity, high blood pressure, and heartburn. It has recently seen greater attention with the rise in demand for low-carbohydrate, low-sugar food alternatives, and is widely used as a sweetener in Japan, and is available in the US and Canada as a health food supplement.
In 1931, French chemists isolated the glycosides that give stevia its sweet taste. These extracts were named steviosides and rebaudiosides. These compounds are 250–300 times sweeter than sucrose (ordinary table sugar). Stevia's sweet taste has a slower onset and longer duration than sugar's, and especially at high concentration, it has bitter and liquorice-like off-tastes. Stevia does not significantly alter blood glucose, and so is attractive as a sweetener to diabetics and others on carbohydrate controlled diets.
Reversitall - Specializing in organically grown stevia seeds, plugs, and white powder. Includes a fact sheet.
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Stevia Canada - International wholesale, retail and bulk shipments. Also provides recipes and conversion chart.
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SteviaSmart.com - Stevia information in newsletter e-mail includes where to purchase plants, liquid and powder as dietary supplement alternative to aspartame
The Steviva Company - Specializing in stevia, but also offering other dietary supplements.
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