Garcinia Cambogia is a small fruit which grows on a tamarind tree, in tropical parts of the world, mostly in parts of Asia, where it is used in some traditional dishes such as curries. Rather than eat the whole fruit, you can purchase it in concentrated extract form, made from the rind of the fruit. It has become popular as a tool for weight loss and also for other benefits including reducing LDL cholesterol and triglycerides, and increasing serotonin levels.
The supplement has an interesting history as part of Ayurvedic medicine and is still being studied for its role in weight loss. In the meantime, it is recommended that if you want to try it to help with your own weight loss program, you check with your doctor, do not exceed the recommended dose, and use it in combination with healthy eating and regular exercise.