By treesgirl Latest Reply 2009-01-27 21:47:43 -0600
Started 2009-01-26 16:45:23 -0600

I know everyone says "drink more water". But how much? Is it based on weight of the person, a certain standard, etc.

21 replies

2009-01-27 05:24:01 -0600 Report

I think you got most of the answers you can use right now; however, I wanted to add that lately I have heard some contaminations in bottled water, so I have decided to filter my own. I just use the gallon (Britta) jug that has filters right in the top. Easy to measure what you drink that way too.

Avera 2009-01-26 22:37:35 -0600 Report

Hi Everyone!

I've been reading everyone's posts concerning water. These are my very favorite kinds of discussions because I always end up learning something. The answer to the questions lead me to do research to find the best answers.

I have known since 2002 that the "8 x 8 rule" was not supported by scientific evidence. The New York Times, the Los Angeles Times, CBS, ABC, and others all carried the news concerning this.

Here is where the news came from. I have copied for you…

In an invited review published by the American Journal of Physiology August 8, Valtin, the Vail and Hampers professor emeritus of physiology at Dartmouth Medical School, reported no supporting evidence to back this popular counsel, commonly known as “8 x 8″ (for eight, eight-ounce glasses).
Valtin, a kidney specialist and author of two widely used textbooks on the kidney and water balance, sought to find the origin of this dictum and to examine the scientific evidence, if any, that might support it. He observes that we see the exhortation everywhere: from health writers, nutritionists, even physicians. Valtin doubts its validity. Indeed, he finds it, “difficult to believe that evolution left us with a chronic water deficit that needs to be compensated by forcing a high fluid intake.”

In other words, by doing extensive research, no proof of the 8x8 rule was found. Here is the link if you want to read an account of the study.

Dartmouth Medical School (2002, August 9). "Drink At Least 8 Glasses Of Water A Day" — Really?. ScienceDaily. Retrieved January 26, 2009, from http://www.sciencedaily.com­ /releases/2002/08/020809071640.htm

Lady Di gave us the information to read from the most widely accepted source..The Mayo Clinic. Here is exactly copied what they recommend concerning water. You will notice they also state that there is no scientific evidence for the 8x8 rule.

((How much water do you need?))

"Every day you lose water through your breath, perspiration, urine and bowel movements. For your body to function properly, you must replenish its water supply by consuming beverages and foods that contain water.

Several approaches attempt to approximate water needs for the average, healthy adult living in a temperate climate.

**(Replacement approach.) The average urine output for adults is about 1.5 liters (6.3 cups) a day. You lose close to an additional liter of water a day through breathing, sweating and bowel movements. Food usually accounts for 20 percent of your total fluid intake, so if you consume 2 liters of water or other beverages a day (a little more than 8 cups) along with your normal diet, you will typically replace the lost fluids.

**(Eight 8-ounce glasses of water a day.) Another approach to water intake is the "8 x 8 rule" — drink eight 8-ounce glasses of water a day (about 1.9 liters). The rule could also be stated, "drink eight 8-ounce glasses of fluid a day," as all fluids count toward the daily total. Though the approach isn't supported by scientific evidence, many people use this basic rule as a guideline for how much water and other fluids to drink.

**(Dietary recommendations.) The Institute of Medicine advises that men consume roughly 3 liters (about 13 cups) of total beverages a day and women consume 2.2 liters (about 9 cups) of total beverages a day.

Even apart from the above approaches, if you drink enough fluid so that you rarely feel thirsty and produce 1.5 liters (6.3 cups) or more of colorless or slightly yellow urine a day, your fluid intake is probably adequate."

One of the best sites on the web to start your search to find answers to medical myths is called—Junkfood Science— The site provides critical examinations of studies and news on food, weight, health and healthcare that mainstream media misses. It debunks popular myths, explains science and exposes fraud that affects your health. Plus it has some fun food for thought. It is for readers not afraid to question and think critically to get to the truth.

I usually go there to get my references that lead me to the articles I need and can believe. Here is the link to the site. I'm sending you to the page for everything about "water."


Hope this helps. I sure did enjoy the discussion and especially enjoyed the fact that it caused me to learn more.


caragypsy 2009-01-26 20:52:23 -0600 Report

I drink 62 or more ozs of water a day plus lots of tea. I need to drink this much or I don't feel good, plus my feet ankles and hands swell up.

shirleycc 2009-01-26 22:22:02 -0600 Report

I can only say that my dr. said if I felt
thirsty, I had waited too long before
taking in liquids. He also said avoid
caffeine if possible, and reminded me that most foods have liquids in them.
Another thing he told me was that if I drank cold water. at least 8 oz., ten or
fifteen minutes before a meal I wouldn't
be so hungry and would eat less. He also
suggested that I start a meal with a cup
of soup, mostly broth. Every little bit
helps. I was in for a regular endo check today and my A1c level was 5.4. It's stayed below 6.0 for two years now,
so he feels I'm doing some things right.
On the other hand, he wants my cholesterol below 80 and it was 114 in
last week's test.



rsimon 2009-01-26 22:42:38 -0600 Report

Shirley's physician's advice is a good one, however if your physician is monitoring your creatinine and GFR, too much water can skew the creatinine results through dilution.
Drink when you are thirsty and not much more often

treesgirl 2009-01-26 19:37:01 -0600 Report

Thanks for the helpful links and advice. I will keep drinking!

2catty 2009-01-26 19:42:54 -0600 Report

I try to drink as much as I can but it is hard to tolerate straight water. I love crystal light though. I just wonder I we really get the water benefits though? I sure hope so.

SkipT 2009-01-26 19:34:55 -0600 Report

Snopes has an interesting page on the 8 glasses of water myth.


GabbyPA 2009-01-26 20:19:08 -0600 Report

If you read all the way thru the article, you will see that they do recommend the 8 glass as a rule of thumb, but it is totally individual and dependant on your activity and where you live. I do have to say, that though I like Snopes.com...I have found them to not be as accurate as I would like. So take the "False" with a grain of salt.

GabbyPA 2009-01-26 17:28:16 -0600 Report

I hear all kinds of things on this and I guess you have to find your own place in it all. I have heard that 40oz to 64oz is a minimum daily requirement. I shoot for 64oz or more a day, and I don't include anything that has caffine in it. If my lips are dry, then I need more. I do have to make it a goal, because now that my levels are not sky high, I don't have the thirst I used to.

2catty 2009-01-26 18:02:13 -0600 Report

At first I heard it was 64oz. now I am hearing it is 40oz. But I do know that you actually can have to much water. Has anyone heard of the woman trying to win the car from the radio station and she drank so much water that it killed her? I don't think anyone under normal circumstances would drink that much, but a lot of people would have never thought water consumption would kill you.

2009-01-26 18:34:53 -0600 Report

I have heard about drinking too much water would kill you, but as long as you eat, drinking up to 64oz shouldn't be a problem. But, I'm not a doctor, so I don't want anyone think I'm giving out medical advice.

Anonymous 2009-01-26 18:40:59 -0600 Report

But my doctor says it is not only water. If you drink coffee and tea or crystal light you are getting water. For me I drink 2 cups of coffee in the morning, plus tea with meals and some water throughtout the day. So I am getting enough liquid. Not to be too graphic, but if your pee is mostly clear when you pee than you are drinking enough. If it is yellow or dark yellow you need to drink more. That is how my doctor said you would know.

2catty 2009-01-26 19:41:13 -0600 Report

Yep your right. I keep trying to tell my middle son he needs to drink some form of water. Even Crystal light of propel or something. When he goes it is dark orange. That is kinda gross I know but I worry for him.

LadyDi - 26259Miller
LadyDi - 26259Miller 2009-01-26 21:25:02 -0600 Report

The average person is not going to drink enough water to kill themselves. Those that have died from too much were doing things that were out of the ordinary (i.e. the lady trying to win the car). As a general rule your body will tell you when you need water, and you do get water in various ways other than just drinking straight water.

2009-01-26 16:59:01 -0600 Report

I may not have my numbers exact, but if I remember correctly, drs have always said to drink 3 or 4 8oz glasses of water a day, at least. That is whether you have any medical problems or not. If anyone knows the correct number, I will automately stand corrected, but the more water you drink, the better off you are because it helps to cleanse your system and remove any toxins, etc.