FYI: I have tried a simple 2 day fast: dilute lemonade only. 1/4 c lemon juice, preferably fresh, 1/4 c sugar, and 6 cups of water. Just sip on it all day. When it is gone, drink only water.
I have only raw food for a couple of days before (apples and broccoli), and a couple of days after. Love how light and fresh I feel after this, and the feeling keeps me from overeating for seveal weeks. (low cost, simple)
PS: perhaps a typo on page 1 of the article: fast-PACED life, not PAST