Rubusoside is a natural high-efficiency sweetener, which is extracted from sweet tea. Its' sweetness is 300 times that of sucrose, calories is 1% of sucrose, and it has a refreshing sweetness close to sucrose, safe to eat, no toxic side effects. It also has the effects of lowering blood fat and blood sugar. It is the ideal sweetness substitute. It is especially suitable for patients with diabetes, high blood pressure, obesity, hyperlipidemia, and people who are not suitable for sugar. It is widely used in the market of natural non-sugar sweeteners such as food and health products.