Originally Posted by andrew112
I did an experiment one time where I went on a water fast, and felt miserable, and then ate some green vegetables and instantly felt better than I had been feeling when I was on the water fast.
Therefore, shouldn't one feel better--or at least less miserable/drained--while juicing than on a water fast? At least while juicing you are getting nutrients and some nourishment, whereas on a water fast you are only getting water.
You're absolutely right that we will almost always feel less drained and better overall while juicing as compared to water-only fasting. It is a common misconception, however, that while fasting we are weak because we are under-nourished, when in truth we are getting all the nutrition we need including every necessary vitamin and mineral from our internal reserves. We therefore feel weak with water-only not from lack of nutriment, but because our limited resources/energies are freed up and able to direct themselves away from the massive digestion/assimilation/elimination chores and intensely towards cleansing/detoxifying (and also healing).
Detox involves billions of cells releasing toxic materials into the bloodstream for elimination and this will commonly make us feel lousy while it is taking place.
Ron Kennedy, M.D. says:
"Fasting creates a condition of low concentration of toxic wastes in the circulatory system. This is sensed by the plasma membrane of each cell and each cell will then let go of its load of toxic wastes. When this happens suddenly, as it does with fasting, the result can be a sudden case of mild systemic toxemia as the system cleanses itself. Those who fast must be prepared for a phase of headache, irritability, insomnia and fatigue. This is a natural part of the healing process and should be welcomed." ...
The rare water-only fasters of today who are toxemia free feel strong and energetic while fasting. This was a lot more common in decades gone by. I have undergone 3 (*and a half*) major fasts over the past couple years and still have not quite reached this goal.