Finally, the negative water pressure that occurs in the roots will result in an increase of water uptake from the soil. (scientificamerican.com)
So if keeping the gut free of sodium is the best way to facilitate passive water uptake, why not just drink plain water? (completehumanperformance.com)
Use a thick layer or a series of thick layers — as thick as you can get to reduce water uptake. (buildingscience.com)