The Stevia Plant is a small shrub that has been used as a source of natural,zero-calorie sweetness for hundreds of years. Browse articles, FAQs and recipes to learn more about this natural alternative to sugar and how it can play a role in your diet.it can play a vital role in helping people maintain a healthy, balanced diet. Swapping a stevia-based sweetener for full-calorie sugar in baking, cooking, and beverages can be part of a successful weight management strategy. In addition, using stevia rather than sugar throughout the day can help you achieve your calorie intake goals. In this sense, stevia can play a role in helping you live a healthier lifestyle.