Original Posting At http://www.jasonvalendy.net/blog/the-key-difference-between-a-cleanse-and-a-fast
If you are into cleanses then that is great, but do not confuse a cleanse with a fast. They are different.
Of course a cleanse is different from a fast in that many cleanses encourage taking in of some food or liquid and fasts generally do not. It is also true that there are some cleanses that call for fasting from food. I can list all the ways cleanses and fasts overlap or not, but beyond the superficialities, cleanses and fasts are fundamentally different in one way: what they embrace.
The promise of the cleanse is some combination of prolong life and/or health, greater energy, weight loss, better eating habits, etc. Be it the advice of Dr. Oz or any number of cleanses (liver, colon, juice, soup, coconut oil, sauna, etc.), there is a lot to be said for being more aware of what we are eating and how much of it we eat. There is nothing wrong to being healthy, and perhaps a cleanse is a good thing for all of us. However, the promise of the cleanse is that by practicing all these things you will stave off death for a little bit longer than you would otherwise. Cleanses embrace life.
Conversely a fast is an intentional practice of limiting food for the purpose of coming face to face with your limitations and dependence upon others. It is purposefully entering into a state of limits in order to practice in order to be at peace with the limits of life. Fasts may have some physical discomfort but the intended discomfort of the fast is the discomfort we have with death. Thus the more we fast, the more we come to terms with our own deaths. Which is why fasts embrace death.
People are motivated to take on cleanses or fasts for a variety of reasons, and I am not in a position to dismiss these reasons. You may be a person who practice fasting and more power to you. However, if we embark on a fast that leads us to embrace life rather than embrace death, then we are really embarking on a cleanse by another name.