i think about making tinctures and compare it to this subject. the really clean and pure alcohol or vodka extracts much less of the ingredients in the plant tissues than if there are some impurities in it for an exchange to take place.
if this correlates to water going into the body, its the dirty water that will pull needed nutrients out of the cells, not the pure water. this is congruent with all the other lies we are told that try to get us to run into the trap instead of out of it. "salt is poison and causes high blood pressure" and "iodine causes goiter" are some that come to mind.