Stevia is a sweet-tasting herb that is used as a natural sweetener. There are various synonyms for stevia that are used in different parts of the world. In South America, stevia is also known as "yerba dulce," which translates to sweet herb. In Japan, stevia is called "shizenhaito," which means natural sweetening substance. In Bolivia, stevia is referred to as "ka-a he-e," which translates to sweet herb of the forest. Other synonyms for stevia include sweet leaf, sweet herb, honey leaf, and sugar leaf. Regardless of what it's called, stevia is a popular alternative to sugar, as it is much sweeter, has fewer calories, and doesn't raise blood sugar levels.