The first step towards an effective colon cleanse is to quit all poor dietary and eating habits.
This will take some time, as you probably will not be able to give up your eating habits immediately.
Once you have done this, you can prepare for your colon cleanse.Avoiding junk foods and eatingmore healthy foods before a cleanse is worth considering.
Fasting could prove helpful for some people. Some people have a juice fast or a day of complete fasting before starting on a colon-cleansing program.
Some have a “water fast” by drinking only water with, perhaps, a little salt. Some other people have a juice fast by drinking only fresh fruit and vegetable juices.
Fasting of any kind is not mandatory and any particular type may have negative effects on some people. You should always consult your doctor before trying any sort of fast. Some people only eat light meals for few days prior to a colon cleanse.
Source of Information : Your Guide to Colon Cleansing by By Peter Mason