People use the leaves of stevia, a plant native to South America, as sweeteners and herbal supplements. Stevia leaves are 250 to 300 sweeter than table sugar and highly used in sweetening beverages such as tea since the 16th century. Presently, as more people are inclining to a healthy lifestyle, they are looking for zero-calorie sweeteners. Therefore, stevia stands as the most popular and most preferred sweetener across the world.