Mung beans (Vigna radiata) have been grown in India since ancient times and are still grown in Southeast Asia, Africa, South America, and Australia. The bean may go by a variety of names such as: green gram. This warm season legume is a native of India and is still grown on a large acreage there. Often called green gram or golden gram in international publications, it is also cultivated in several countries of Asia, Africa, and South America. In the U.S., most mungbeans are grown in Oklahoma. It is rich in Vitamin A, B, C and E and also in many minerals including iron, calcium, and potassium. Not to forget it is a powerful source of vegetarian protein. It good to Lose Weight: It is considered a healthy weight loss food as it is a low-fat food rich in proteins and fibre.