It's sweet. It's green. It's ... Reb-A? Sweet Green Fields (SGF) makes an all-natural sweetener from the stevia plant, a nearly pure form of stevia-derived Rebaudioside-A (or Reb-A), which is up to 300 times sweeter than natural sugar. The zero-calorie ingredient is also low glycemic so it doesn't cause a spike in blood sugar that can be dangerous to diabetics. Reb-A's intensity, natural origins, and lack of calories makes it very attractive to food and beverage makers the world over. SGF offers a 97% and an 80% Reb-A product made at its Chinese extraction facility; the company grows the plants in Hawaii, thereby controlling the entire production process.