Agave nectar is a natural food sweetener. The most valuable part of the Agave plant is its sugars. By far the main carbohydrate is a complex form of fructose called inulin or fructosan. These carbohydrates are broken down to produce a syrup with a high content of fructose (approximately 70%). Fructose is a simple sugar found mainly in fruits and vegetables. It has almost 50% greater sweetness than sucrose.