Garcinia cambogia -- a tropical fruit in the mangosteen family -- is a common ingredient in commercial weight loss products, including. Garcinia Cambogia Pure. How do I choose which. Garcinia cambogia extract to buy? Be very careful when choosing the products. Not all garcinia cambogia. Since the late 's Garcinia Cambogia has been included in used the highest dosages of mg daily, and showed the greatest amount.