Yacon syrup
Yacon syrup is derived from the South American yacon plant. Its sweet flavor, black hue, and thick consistency make it similar to molasses. This product contains fructooligosaccharides, which are sugar molecules that your body cannot digest. Because these sugar molecules go undigested, yacon syrup has one-third the calories of ordinary sugar or around 1.3 calories per gram.
However, because yacon syrup is sweeter than table sugar, you may need to use more to match the sweetness of refined sugar. The fructooligosaccharides in yacon syrup may be beneficial to one's health. These substances, for example, operate as prebiotics, feeding the beneficial bacteria in your stomach. Furthermore, some study indicates that yacon syrup may boost sensations of fullness.