The ability of Stevia to inhibit the growth and reproduction of bacteria and other infectious organisms is important in at least two respects. First, it may help explain why users of Stevia?enhanced products report a lower incidence of colds and flues, and second, it has fostered the invention of a number of mouthwash and toothpaste products. Research clearly shows that Streptococcus mutans, Pseudomonas aeruginos, Proteus vulgaris and other microbes do not thrive in the presence of the non?nutritive Stevia constituents. This fact, combined with the naturally sweet flavour of the herb, makes it a suitable ingredient for mouthwashes and for toothpastes. The patent literature contains many applications for these kinds of Stevia?based products. Stevia has even been shown to lower the incidence of dental caries.
Digestive Tonic Action:
In the literature of Brazil, Stevia ranks high among the list of plants used for centuries by the "gauchos" of the southern plains to flavour the bitter medicinal preparations used by that nomadic culture. For example, it was widely used in their "mate." Through much experimentation, these people learned that Stevia made a significant contribution to improved digestion, and that it improved overall gastrointestinal function. Likewise, since its introduction in China, Stevia tea, made from either hot or cold water, is used as a low calorie, sweet? tasting tea, as an appetite stimulant, as a digestive aid, as an aid to weight management, and even for staying young.
Effects on the Skin:
One of the properties of a liquid extract of Stevia that has not yet been investigated experimentally is its apparent ability to help clear up skin problems. The Guarani and other people who have become familiar with Stevia report that it is effective when applied to acne, seborrhea, dermatitis, eczema, etc. Placed directly in cuts and wounds, more rapid healing, without scarring, is observed. (This treatment may sting for a few seconds, but a significant lowering of pain follows this). Smoother skin, softer to the touch is claimed to result from the frequent application of Stevia poultices and extracts. Current FDA labelling regulations are forcing U.S. suppliers to label their Stevia as something other than a sweetener; an appeal to its soothing action on the skin has been the most frequent alternative. Stevia is also known for skin shining and tightening properties, and has found its way in several commercial skin tightening products or anti-wrinkle products.
Anti-Hypertensive:
A 1-year, double-blind, placebo-controlled study of 106 individuals with high blood pressure evaluated the potential benefits of stevia for reducing blood pressure.4 In the treated group, the average blood pressure at the beginning of the study was about 166/102. By the end of the study, this had fallen to 153/90, a substantial if not quite adequate improvement. In contrast, no significant reductions were seen in the placebo group.
( ref: http://steviahellas.blogspot.com/)
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