Can I ask an honest question that I imagine will make me NO friends? If recent science has shown that drinking more and more water has no particular health benefits (which it has) why is there such a focus on it? Is it just that water helps us feel full?
The Mayo Clinic says the 64oz/day rule is not supported by science and also says ALL beverages count toward your daily fluid total.
And from Snopes (you may not credit Snopes with much, but if you look at their listed sources below the article, they’re legit):
“Kidney specialists do agree on one thing, however: that the 8-by-8 rule is a gross overestimate of any required minimum. To replace daily losses of water, an average-sized adult with healthy kidneys sitting in a temperate climate needs no more than one liter of fluid, according to Jurgen Schnermann, a kidney physiologist at the National Institutes of Health. One liter is the equivalent of about four 8-ounce glasses. According to most estimates, that’s roughly the amount of water most Americans get in solid food. In short, though doctors don’t recommend it, many of us could cover our bare-minimum daily water needs without drinking anything during the day….”
“In a study published in the October issue of the Journal of the American College of Nutrition, researchers at the Center for Human Nutrition in Omaha measured how different combinations of water, coffee and caffeinated sodas affected the hydration status of 18 healthy adults who drink caffeinated beverages routinely.
“We found no significant differences at all,” says nutritionist Ann Grandjean, the study’s lead author. “The purpose of the study was to find out if caffeine is dehydrating in healthy people who are drinking normal amounts of it. It is not.”
The same goes for tea, juice, milk and caffeinated sodas: One glass provides about the same amount of hydrating fluid as a glass of water. The only common drinks that produce a net loss of fluids are those containing alcohol — and usually it takes more than one of those to cause noticeable dehydration, doctors say.”
I’m not saying (nor are these sources) that we shouldn’t drink any water, and I would certainly say that if weight loss is your goal it is better to drink water than the empty calories in a soda, but I’m just wondering why there is such a push for water water water, with some programs pushing people to drink 100oz a day and more, when the science just doesn’t seem to support it?
Full disclosure: I drink water almost exclusively, but mostly because I started doing so to avoid excess calories and now I’m used to it. I keep a large cup nearby, and I get anywhere from 32-64oz per day by only drinking when I feel thirsty, including when I exercise.
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