it's best to do mild cleanses since we humans tend to go back to old eating habits eventually. it is not feasible to do a hardcore cleansing program only to get stressed about something later on and raid the vending machine of all its snickers bars.
just change your diet. eat less red meat. not too many sweet fruits for all the sugar, but eating oranges is good and maybe red grapes for their antioxidant value. fast for a couple of days.
take capsule enzymes and a good probiotic supplement. on the weekends try to do magnesium citrate with an enema. this way you are not running to the bathroom nonstop during the weekdays making your boo boo raw.
get some liquid chlorophyll and drink that too. exercise in the gym.
too many body flushes is hard on the system.