Grapefruit good for health.The 12day grapefruit diet is said to help you to lose 10lbs a week, if you desire to lose weight naturally fast.

Well I do agree with you that Grape fruit is natural and also helps to reduce weight rapidly the reason is that it is free from fats and 100% natural nutritious food . I would suggest to eat normal foods such as green vegetables and also eat grapefruit to get the desired results in form of weight loss .