The reality is that I don't want to sacrifice 3 weeks of quality training to do a cleanse, so I am looking for a reader's digest version.
I did a 24 hour water fast (with the required cup of black coffee) this past Wednesday and it was pretty easy. I was able to workout in the morning and did not feel like I was going to die all day. I am thinking about doing every Wednesday for a month to see if I notice anything different. I do eat a relatively clean diet, but will occasionally stray for something that looks yummy.