The stevia sugar is a new natural sweetener extracted from stevia leaves which belong to chrysanthemum family , it has unique properties like high sweetness and lower calories , 200~350 times than cane sugar in terms of sweetness , but 1/300 of calories than that of cane sugar . The large quantity of medicinal experiments show that the sugar has no side effect and is not poisnous , no carcinogenesis and is a safe product , it can prevent people from hypertension ,diabetes , obesity , heart disease , tooth decay , etc. and is an ideal and natural sugar replacing cane sugar . The stevia sugar has been extensively used in food , drinks , medicine , daily use chemical industry , wine brewery , cosmetics , etc. and especially it can save 70% of cost . It looks white , and tastes nice , without odour, and is a potential sugar source . The stevia sugar is a natural sweetener which has been approved by the ministry of hygiene and the ministry of light industry , and are widely popular around the world , and it is regarded as the world No. 3 sugar source after cane sugar and beet sugar .