Food and nutritional security are the major concerns in many world countries and may have the potential to contribute to sustainable food systems under climate change. It has become extremely important to diversify the present-day agricultural system and search for alternative food and feed ingredients to address food and nutritional insecurity. Some wild root and tuber crops occupy a remarkable position toward food security in the developing world due to their high calorific value and superior carbohydrate content. Among the tuber crops, the major edible species include cassava, potato, sweet potato and the other minor tuber species include yams, taro, arrowroot, elephant foot yam etc. These underexploited tubers are used for culinary purposes and medicinal purposes, viz., diabetes, fever, cough, hypertension, weakness, etc.