When I was a little girl, my Grandma kept 8 little figurines on her windowsill above the kitchen sink. Every day, she would move one over to the other side of the windowsill every time she drank a glass of water. For years, she drank 8 glasses of water every single day, no more, and no less. She lived until she was 92, and as far as I know, other than a few mild strokes, she was very healthy. It could have been the fact that she didn't drink alcohol, that she lived and worked on a farm for most of her life, or that she had good genes, but it probably had nothing to do with her drinking her eight glasses of water a day.
A new study published in the Journal of the American Society of Nephrology, by Dr. Stanley Goldfarb and Dr. Dan Negoianu of the University of Pennsylvania debunks the health value of "guzzling glasses of water to flood yourself with good health".
Goldfarb and Negoianu examined what Goldfarb called "four major myths" regarding claims of a benefit for extra water drinking: that it leads to more toxin excretion, improves skin tone, makes one less hungry and reduces headache frequency.
"Our bottom line was that there was no real good science -- or much science at all -- behind these claims, that they represent probably folklore," Goldfarb said.
Even more validation that drinking Diet Coke instead of Water won't kill me. Well, maybe the aspartame, caffeine, or phosphoric acid will kill me, but not dehydration.