It is basically your body type depending on which a person is allowed for detox. As it suits the body it works excellent. So it is always required to apply detox on the recommendation of renowned health centers. There are many detox plans like juice fasting, fasting on raw veggies and fruits, lemon juice etc. You can also consult few good health centers like Fresh Start in Vancouver, i have personally taken their 5 days plan & i really got a change in my health. Their packages are also very nominal as compared to others & you will also enjoy the place, ocean beach, its natural beauty, luxurious accomodation, in short everything.