Yacon originated in the Andes and has been enjoyed by South Americans for several centuries. It is related to the Jerusalem artichoke and sunflowers. The edible tubers contain a type of carbohydrate called fructooligosaccharides (FOS), which have a low glycemic index and calorie value. Because the sugar in yacon is mostly FOS, it is low in calories and a good sweetener for dieters and diabetics. Yacon also helps the body absorb vitamins and minerals from other foods, while being rich in antioxidants, potassium, calcium, and phosphorous itself.

Known health benefits of yacon include: the reduction of blood sugar levels, blood pressure, cholesterol, aids digestion, enhances absorption of calcium and magnesium, improves elimination of toxins, and sources say it may reduce the risk of colon cancer.