Stevia (Stevia rebaudiana), a flowering plant from the Asteraceae family, has emerged as a major health alternative in recent times. Hailing from South America, this remarkable plant plays an extraordinary role in managing diabetes and obesity.
Origins and Chemical Composition
Belonging to the Aster family, this herbal plant is native to Brazil and Paraguay. Its leaves contain chemical compounds known as steviol glycosides (specifically stevioside and rebaudioside A). Remarkably, the extract from this plant can be up to 300 times sweeter than a tablespoon of regular sugar. Surprisingly, it contains zero calories and has no impact on blood glucose levels, making it a unique “non-glycemic” sweetener.
Physical Characteristics and Cultivation
Stevia is a tender perennial herb that reaches a height of 30.5–80 cm (1–2.5 feet). Its oblong, aromatic leaves are about 2.5 cm (1 inch) long, featuring a prominent midvein and arranged oppositely along the stem. The small, tubular flowers have five white petals and grow in terminal clusters; these flowers are usually removed to improve the flavor of the leaves. Since germination from seeds is difficult, most plants are grown from cuttings. The plant requires rich, well-drained soil and thrives in warm, humid climates.
Historical Background and Recognition
The Guarani people have used stevia leaves for over 1,500 years. Traditionally, the plant was used to sweeten Yerba Mate and other teas, as well as in folk medicine. The first scientific record of the plant dates back to 1899, when Swiss botanist Moises Giacomo Bertoni announced the discovery of this sweet-tasting plant and named it Eupatorium rebaudianum.
In the early 1970s, Japanese scientists were the first to commercially produce sweeteners derived from stevia, which quickly gained popularity there. Following initial bans due to concerns over carcinogens, the U.S. Food and Drug Administration (FDA) approved specific glycoside extracts in 2008. Later, in 2011, the European Union approved stevia as a sweetener.
A Modern Health Solution
Sugar is often referred to as “White Poison” by experts, as excessive consumption increases the risk of heart disease, Type 2 diabetes, and tooth decay. In contrast, Stevia is a natural, medicinal, and zero-calorie alternative. For those who love sweets but want to avoid health risks, Stevia offers a modern and scientifically backed solution. Currently, it is widely available in the market in both powder and liquid extract forms.