Stevia Rebaudiana Bertoni is a very valuable medicinal plant for the natural treatment of diabetes, obesity, nicotinism and high blood pressure. It is a natural low-calorie sweetener which regulates the blood glucose levels and has none of the adverse effects of the artificial sweeteners. Native to Paraguay, this plant has been used during generations by the native people of that country, not only for sweetening, but also as a digestive, diuretic and anti-acid remedy. The extract of its leaves is ideal for the preparation of drinks, sweets, jams, cakes or yoghourts.