Stevioside is a natural sweetener extracted from the leaves of the Stevia rebaudiana plant. Here are some key points about stevioside:

1. Source and Sweetness: Stevioside is derived from the Stevia plant, which is native to South America. It is a highly concentrated, sweet-tasting compound found in the leaves of the plant. Stevioside is estimated to be 200 to 300 times sweeter than sugar, so only a small amount is needed to achieve the desired sweetness.

2. Calorie-Free and Low Glycemic Index: Stevioside is non-caloric, which means it adds negligible calories to the diet. It also has a minimal effect on blood sugar levels, making it suitable for individuals with diabetes or those following a low-glycemic diet.

3. Heat Stability: Stevioside is heat-stable, which means it can be used in cooking and baking without losing its sweetness or breaking down. It can withstand high temperatures, making it a versatile natural sweetener for various culinary applications.

4. Taste Profile: Stevioside has a clean, sweet taste with a slight licorice-like or herbal aftertaste. The taste profile of stevioside can vary depending on the extraction process and the specific product formulation. In some applications, it may be used in combination with other sweeteners to improve the overall taste.

5. Safety and Regulatory Status: Stevioside has been extensively studied for its safety. Many regulatory authorities, including the FDA in the United States and the European Food Safety Authority (EFSA) in Europe, have approved the use of stevioside as a food additive or sweetener. It has been found to have no adverse effects on human health when consumed within acceptable daily intake levels.

6. Application in Food and Beverages: Stevioside is commonly used as a sugar substitute in various food and beverage products, including beverages, desserts, yogurt, sauces, and confectionery. It can be found in both packaged products and as an ingredient in tabletop sweeteners.

It is worth noting that while stevioside is generally considered safe, some individuals may perceive a bitter or metallic aftertaste with high concentrations or certain products that contain other stevia compounds. Different forms and brands of stevia extracts may vary in taste and sweetness. As with any food ingredient, it is advisable to consume stevioside in moderation as part of a balanced diet.