Re: master cleansing vs fruit fast

3 days of any kind of fast while better than nothing is not going to do much and certainly not anything with any lasting effects. If you are just trying to address constipation then one of the easiests ways is with one of the oxygen based colon cleansers like Oxypowder or Colosan. Those too while effective are a tempory solution if you don't "radically" change your habits. There are no magic pills.