I had never heard of this, so I did a bit of digging. I found this link, which implies the oil is used in aromatherapy. But remember that the best way to lose weight is to eat a balanced diet, consume the correct amount of calories for your body, and burn enough calories during exercise and regular activity. Crash diets never work for the long term, and more often than not do more harm to your body from yo-yoing up and down.