Garcinia Cambogia Garcinia cambogia, an exotic fruit grown in South India, has been used to impart a distinctive sour flavour to Indian cooking.. It is the source for a revolutionary natural diet ingredient which is currently a rage in America, Japan, Europe and other western countries. Garcinia cambogia extract is the calcium salt of hydroxy citric acid (HCA), which is obtained from water extract of Garcinia cambogia fruit . It is non-toxic, tasteless, odorless powder and found to be very effective herbal alternate for controlling obesity and cholesterol by inhibiting lipogenesis in our body.