Drink this drink it every day in the morning and evening before meal. You will see the results in 14 days. After 14 days take a 7-days break. If you are not happy with the results then drink two cups of this drink for other two weeks for better results.
If you do not find grapefruit, then you can replace it with other citrus fruit. However, do not use lemon and use oranges instead. For better results you should try to prepare the drink fresh each time you consume it.