Yacon also known as ground apple, is an underutilized, non-starchy perennial herbaceous crop which is cultivated for its tuberous roots which is similar to that of sweet potato in its appearance. It belongs to the family Asteraceae, native to South America and its cultivation have spread widely to several countries, such as the Czech Republic, China, Brazil, Japan, Italy and New Zealand. In India, it is grown in some areas of North-Eastern states and has got great potential due to high nutritional value and large size of its tubers. It can be eaten raw, boiled (in the form of soup), roasted, dehydrated or in form of beverages and roots of yacon contains considerable amounts of potassium and vitamin C. It is a rich source of beneficial bioactive compounds like polyphenols, phytoalexins, fructans, etc., which are responsible for its medicinal properties. Being is a rich source of fructooligosaccharides (FOS) and inulin, it has bifidogenic benefits for gut health which prevents constipation and reduce the concentrations of blood glucose and lipids. The other health benefits include prevention of colon cancer, diabetes and obesity by reducing the glycemic index and body weight. Yacon has recently become popular as a healthy functional food in Japan and other countries as its tubers are rich source of oligofructans and polyphenols whereas, the leaf extract has antidiabetic effects.