Yacon syrup is extracted from the roots of the yacon plant. It’s a sweet-tasting syrup. There is however only one study that shows that yacon syrup can help with weight loss and so I don’t think that you should use yacon syrup with the hopes of weight loss. At the end of the day it is a syrup and that means it is a carbohydrate. If you start using too much of it you may actually end up gaining weight. If you are in search of something that can help with weight loss then I suggest Resurge. It is a dietary supplement and it will help you lose weight without any harmful effects on the body.