Do you really need EIGHT glasses of water?

[samira]

Unfortunately, the eight, 8 oz glasses of water a day myth is alive and well in these forums.

"How did the national habit get started? No one knows. Dr. Valtin (a kidney physiologist) thinks that 8 x 8 may stem from guidelines posted by the Food and Nutrition Board of the National Research Council (NRC):

"An ordinary standard for diverse persons is 1 milliliter for each calorie of food. Most of this quantity is contained in prepared foods."

The second sentence may have been forgotten or not heeded, so that the NRC's guideline was erroneously interpreted as eight glasses of water to be drunk each day. The Food and Nutrition Board is currently re-evaluating its recommendation."

Here are some links to cheer you up for when you have had your fill of water and don't want to "fail" at that 8 x 8 goal:

American Physiological Society:

http://www.the-aps.org/press/journal/02/release8-13-02.htm

Abstract of article referenced in APS:

http://ajpregu.physiology.org/cgi/content/abstract/00365.2002v1

Medical Myths Even Doctors Believe:

http://www.sciencedaily.com/releases/2007/12/071220195639.htm

Dartmouth Medical School:

http://dms.dartmouth.edu/news/2002_h2/08aug2002_water.shtml

Doesn't even have to be plain water:

http://www.drmirkin.com/nutrition/9942.html

And a fun one from Snopes, the urban legend people:

http://www.snopes.com/medical/myths/8glasses.asp

[Bluebelt2007]

Re: Do you really need EIGHT glasses of water?

Interesting post and links.

I personally drink about 128 oz of water a day. Maybe I need to maybe I don't. I will say that I do feel better with out drinking all the other junk I used to. I have no scientific debate for you, my feeling better could be caused by weight loss, no more caffeine or aspartame, etc.. However, I do feel better so I will stick with my water. I also trust Dr. Atkins 2002 Book.

[Sera]

Re: Do you really need EIGHT glasses of water?

that might explain where that rule from in your region but over here we dont go by glasses, its just a rule of thumb that you should get 2-3 liters of water each day.

now if you consider how much salt is in the foods we eat these days, u'd probably dehydrate in no time if you didnt drink as much.

[TitianWasp]

Re: Do you really need EIGHT glasses of water?

Consider, as well, that even Dr.Atkins considered this way of eating hard on the kidneys (not recommended for anyone with kidney issues). Water flushes the kidneys. Heck, drink the water. 8 glasses will never be bad for you (more can be, and less can be - 8 is pretty moderate).

[MrsBrittney]

Re: Do you really need EIGHT glasses of water?

I agree. I've read the studies before, but considering with Atkins you are working your kidneys harder than normal and that water helps to flush toxins/hydrate skin/assist metabolism/weight loss processes.. the more the merrier!

[Bren]

Re: Do you really need EIGHT glasses of water?

I LOVE LOVE LOVE my water. I can honestly say it made my weight loss alot easier, my skin alot clearer, less dry, my hair alot less dry etc etc etc.
This is from the FAQ's forum and I think a great read.
There are pros and cons on water consumption everywhere you look. For me.......... I will stick with the water!

We want to give credit to Noble for putting this information together for us. He quotes his sources in the article. Thanks, Noble!!!
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

Most lowcarbers commonly use one of two formulas:
- Half your weight in ounces (If you weigh 200lbs, drink 100oz)
- 64oz + 8oz for every 25lbs you want to lose.
As you will see if you do the keyword search at the Center's site, water helps us keep regular, well-hydrated, suppress hunger, etc. It is pretty difficult to drink TOO much water. And there are many benefits from drinking large amounts of water:

Why drink at least two quarts a day?

Because that's roughly how much water we lose normally through perspiration, waste removal and other functions. Add sultry weather or enough exercise to break a sweat
and the amount of water needed to stay healthily hydrated - not to mention avoid fatigue, light-headedness, nausea, and even heat stroke - quickly climbs.

Additionally, water keeps your energy up, weight down, muscles strong, joints supple, digestive system smooth -- your whole system in physical balance.

Water:

1) regulates body temperature
2) makes up 83% of blood
3) removes waste
4) composes 75% of brain
5) helps carry nutients and oxygen to cells
6) moistens oxygen for breathing
7) helps convert food to energy
protects and cushions vital organs
9) helps body absorb nutients
10) accounts for 22% of bones
11) cushions joints
12) makes up 75% of muscles

It really depends on the person and their activity level as well as the weather. I find the more I drink the less
I actually retain with my activity level and climate. Additionally because of diureteic effects of caffeine drinks
you should have 1 8-ounce glass of water for each 8-ounce glass/cup of these you drink to minimize the effects.

On the other hand however, there is a thing as too much water. If you drink in excess of 8 liters without getting the proper other nutrients your body will actually start depleting
itself of those nutrients.

Also,
Are you Hungry? Many of us mix up food pangs with water cravings!

By Malcolm Stewart, PhD

As a clinical and health psychologist, I work with many people who want to lose weight for personal or medical reasons. It's not uncommon to hear complaints of
intense hunger between regular eating times, no matter how satisfying their meals. For some people, it's puzzling, irritating hunger that makes them want to pick at food
constantly. Others describe sharp cravings that demand immediate satisfaction.

Regardless, the effect is the same: Despite increasing their physical activity (perhaps the key weight loss technique), they can't lose unwanted pounds.

But a little-known fact both helps explain these food pangs - and provides a means to deal with them: Sometimes thirst masquerades as hunger. So you may think your body is asking for food when what it's actually asking for is water.

Your body needs water - a lot of water, every day - more than anything else except oxygen.
WE can live without food for a week or more if necessary, but not without water.
If your body has just 2 percent less than it requires, you'll feel fatigued. A 10 percent shortfall can produce significant health risks. A week without water can be fatal.
Adults need six to eight 8-ounce glasses (about 1 ?? 2 quarts) every day, more if you're large or physically active
and even more if you drink much coffee, tea or cola, because the caffeine in these is a mild diuretic.

Why do we sometimes feel hungry when in fact we're thirsty? For one thing, many of us seem to have learned to interpret some signs of thirst as signs of hunger.
For another, the body may seek food as a source of water because about 37 percent of our daily water intake
comes from food. Fruits and vegetables are typically 70 to 95 percent water. Cooked meat is 50 to 60 percent. Even bread is made up of about 35 percent water.

So your body may signal that it's hungry in order to get more water through food. And because water is so important, the body gives off strong messages when it needs more, which is why thirst masquerading as hunger can be so compelling. Which would be fine if food didn't contain calories as well as water.

Being able to understand that sometimes "I'm hungry" really means "I'm thirsty" can help you react more healthfully, starting with drinking eight glasses daily. This takes a conscious effort for most of us, but it's easier if you make a habit of drinking water every time you do a particular activity - for instance, each time you go into the kitchen or
whenever you're about to make a phone call. You can also up your intake by using a larger glass or drinking a refill.
Some people find "sipper bottles" convenient.

Now apply this to dealing with hunger between meals (which can be translated as "reach for water, not the ice cream"). If you feel hungry when it's not meal time, first have a large glass of water, then get busy doing something - keep at it for at least 20 minutes before you consider eating anything.

After drinking one glass, you may immediately want another. This is your body saying, "Yes! That was want I really wanted - give me more!" If you still feel hungry after 20 minutes, try having another glass of water, then get busy again.

People often feel like they're "bad" or "weak" if they feel hungry at times they think they shouldn't be. However, once you are aware that thirst can masquerade as hunger, you
realize that hunger pangs often are a legitimate request by the body - but for water rather than food.

This isn't a cure - all for curbing hunger, but I've learned from my practice that it can go along way toward beating between meal eating. And that can mean weight-loss success.


and


An excerpt from Oprah's book, Make the Connection, by Bob Greene:

Water is essential to life. Without it, we would survive maybe two or three days. That makes it our most
important nutrient. Water surrounds and is a part of each and every cell in your body, and it's needed or involved in virtually all body functions. About 60 percent of your body
weight is water.

We lose a lot of water each day through basic body functions. By exercising, you lose even more water
depending on the type, length, and intensity of exercise and the climate you work out in. Your body must continually regulate the amount of water that it holds. You become
dehydrated when your body's water supply cannot meet its demands. This can cause a variety of complications, including heat exhaustion and heat stroke. Although less life threatening, dehydration also affects the body's ability to digest food and metabolize fat. Needless to say, having enough water is essential for your body to function at its optimum.

As far as weight loss and weight maintenance are concerned, drinking enough water is extremely important. There are at least six basic reasons why replacing water on a daily basis is important for controlling your weight.

1) Digestion and metabolism - These are two functions we are particularly concerned with when it comes to controlling our weight. If you aren't getting enough water, you risk
impairing these two functions to a certain degree. Enough water ensures that both digestion and metabolism are working at their full capacity.

2) Water's filling effect - by drinking six to eight glasses of water, you can help curb your appetite. Water can fill you up so that you don't overeat.

3) The thirst-hunger response - When you are dehydrated, your body may signal you to eat when what it really requires is water. It does the same thing for a variety of nutritional
needs. For example, your body may need sodium, so it signals you to eat foods containing salt. But all you really need is the salt without all the additional calories in food. I call this phenomenon artificial hunger. By meeting all of your nutritional needs, including your need for water, you can control artificial hunger.

4) Better workouts - You can exercise more effectively and at higher levels when you are getting enough water.

5) Muscle requires more water - Muscle is comprised of about 70 percent water, whereas fat is made up of
less than 25 percent water. One of the many benefits of exercise is that you maintain and even add muscle weight, which in turn burns fat. As you gain muscle, you require more water and need to replace more of it daily. So water becomes more important the more active you are. Think
of it as a cycle: The more muscle you maintain, the more water is held by the body and the more calories are burned by that additional muscle. So the more muscle you have, the more water you must have available.

6) Glycogen storage - Glycogen is a form of carbohydrate stored in your muscles. It can be used as energy when you exercise. The more fit you become, the more glycogen is stored in your muscles. Every gram of glycogen holds about 2.5 to 3 grams of water. So, the more fit you are, the more water your body will hold, and the more water you need each day. Being more fit also allows you to burn calories at a higher rate.

In addition to those six reasons, as you begin to lose fat, your body increases its percentage of water. So the amount of water you need to drink each day increases. This is
especially so the more active you become. Your body is signaled to hold more water. It will usually let you know it needs more water by making you thirsty, but not always.


and


WATER

Water is often called the forgotten nutrient since many people take it for granted, but water is essential to
life. We can live with less than enough food for weeks, months, even years, but take away our water and we
last just a few days.

Water makes up about 60 percent of the average adult's weight. It is the medium the human body uses for
nearly every activity it performs and has many functions, including:

- Carrying nutrients in the body
- Cleansing the body's waste products
- Acting as a solvent, dissolving minerals, proteins, carbohydrates,
vitamins and other substances
- Being involved in the chemical reactions in the body
- Lubricating joints
- Acting as a shock absorber for many organs
- Helping to regulate body temperature

Since water is so important, its balance is delicately monitored by a number of mechanisms. Our brain
signals us to drink when the sodium concentrations in the blood become too high or when blood volume drops too low. Unfortunately, by the time this thirst mechanism kicks in,
we are already in the beginning stages of water deficit. That's why nutritionists recommend drinking before you are thirsty.

This is particularly important for the elderly population because as we age we become less sensitive to our thirst mechanism. At the same time, our percentage of body fluid drops, so it's easier to become dehydrated faster.

Young children are also at a higher risk for dehydration, but for another reason: Their thirst mechanism is not yet fully developed, nor are they always able to recognize when they
are thirsty.

Water needs vary with each individual, but in general, nutritionists still abide by the old rule of eight glasses
- - 64 ounces - - or more of fluid a day. Water is your best bet, but it is certainly not the only way to get fluids.
Fruit juice, seltzer, milk, lemonade, and soft drinks can also quench thirst.
Alcohol and caffeinated beverages like tea and coffee do not count because they are actually diuretics, meaning they cause you to lose fluid rather than retain it.
Food like soup, cucumbers, watermelon, lettuce, tomatoes, and oranges are high in water and good way to supplement your liquid intake.

How much water do you need?

The old standard suggestion of 6 to 8 8-ounce glasses of water a day is still good. But people who exercise may need more like 2 or 3 quarts, especially when it's hot and humid
outside (and during illness).

Get in the habit of carrying a water bottle. It's easy to measure, handy to cart around especially during
workouts, and saves waiting in line at the water fountain - - where it never seems polite to guzzle what you really need when others are waiting.

Drink cool water when you're hot. Cool water empties out of the stomach and enters the system faster.
Drink warmer water (room temperature or warm uncaffeinated tea or broth) when exercising outside in the
cold.

Drink before you're thirsty. People who drink to satisfy thirst replace only about half of what they need. An intelligent, buy the book, "hydration schedule" for a workout looks
something like this:

- 17 ounces of water 2 hours before your workout
- 8ounces or more 15 minutes before your workout
- 4 to 8 ounces every 10 to 20 minutes during your workout
- another 8 ounces after your workout

and from another site (http://members.tripod.com/~rrandolph/water.html)

Incredible as it may seem, water is quite possibly the single most important catalyst in losing weight and keeping it off. Although most of us take it for granted, water may be the only true "magic potion" for permanent weight loss.

Water suppresses the appetite naturally and helps the body metabolize stored fat. Studies have shown that a decrease in water intake will cause fat deposits to increase, while an increase in water intake can actually reduce fat deposits.
Here's why: The kidneys can't function properly without enough water. When they don't work to capacity, some of their load is dumped onto the liver. One of the liver's primary functions is to metabolize stored fat into usable energy for the body. But, if the liver has to do some of the kidney's work, it can't operate at full throttle. As a result, it metabolizes less fat, more fat remains stored in the body and weight loss stops.


Drinking enough water is the best treatment for fluid retention. When the body gets less water; it perceives this as a threat to survival and begins to hold on to every drop. Water is stored in extracellular spaces (outside the cells). This shows up as swollen feet, legs and hands
Diuretics offer a temporary solution at best. They force out stored water along with some essential nutrients. Again, the body perceives a threat and will replace the lost water at the first opportunity. Thus, the condition quickly returns.
The best way to overcome the problem of water retention is to give your body what it needs--plenty of water. Only then will stored water be released.
If you have a constant problem with water retention, excess salt may be to blame. Your body will tolerate sodium only in a certain concentration. The more salt you eat, the more water your system retains to dilute it.
But getting rid of unneeded salt is easy--just drink more water. As it is forced through the kidneys, it takes away excess sodium.
The overweight person needs more water than the thin one. Larger people have larger metabolic loads. Since we know that water is the key to fat metabolism, it follows that the overweight person needs more water.
Water helps to maintain proper muscle tone by giving muscles their natural ability to contract and by preventing dehydration. It also helps to prevent the sagging skin that usually follows weight loss--shrinking cells are buoyed by water, which plumps the skin and leaves it clear, healthy and resilient.
Water helps rid the body of waste. During weight loss, the body has a lot more waste to get rid of--all that metabolized fat must be shed. Again, adequate water helps flush out the waste.
Water can help relieve constipation. When the body gets too little water, it siphons what it needs from internal sources. The colon is one primary source. Result? Constipation. But, when a person drinks enough water, normal bowel function usually returns.
So far, we've discovered some remarkable truths about water and weight loss:


The body will not function properly without enough water and can't metabolize stored fat efficiently.
Retained water shows up as excess weight. To get rid of excess water you must drink more water. Drinking water is essential to weight loss.
How much water is enough? On the average, a person should drink eight 8-ounce glasses every day. That's about 2 quarts. Howegver, the overweight person needs one additional glass for every 25 pounds of excess weight. The amount you drink also should be increased if you exercise briskly or if the weather is hot and dry.

Water should preferably be cold--it's absorbed into the system more quickly than warm water. And some evidence suggests that drinking cold water can actually help burn calories.

To utilize water most efficiently during weight loss, follow this schedule:


Morning: 1 quart consumed over a 30-minute period.
Noon: 1 quart consumed over a 30-minute period.
Evening: 1 quart consumed between five and six o'clock.

When the body gets the water it needs to function optimally, its fluids are perfectly balanced. When this happens, you have reached the "breakthrough point".

Endocrine-gland function improves.
Fluid retention is alleviated as stored water is lost.
More fat is used as fuel because the liver is free to metabolize stored fat.
Natural thirst returns
There is a loss of hunger almost overnight.
If you stop drinking enough water, your body fluids will be thrown out of balance again, and you may experience fluid retention, unexplained weight gain and loss of thirst. To remedy the situation you'll have to go back and force another "breakthrough".
__________________

[mom23kgirls]

Re: Do you really need EIGHT glasses of water?

I add some lemon and ice and it goes down all the more merrier

[Debi2007]

Re: Do you really need EIGHT glasses of water?

There are many articles on water and many theories on what is the right amount. I had a massage therapist (who was a health nut) tell me once that you should take your body weight and divide by 2 and the amount you get is how many ounces of water you need per day just to keep your body running effectively. She said if you drink anything with caffeine you have to replace with water (ounce for ounce). She said I would notice a huge difference.

Well... I am one to believe in personal experience, so I tried it. I wasn't dieting. I didn't change my eating. I did it for one week. I just drank an excessive amount of water. It wasn't half my body weight because at the time that would have been 200 oz, but it was alot!!! I lost 14 lbs that week just by adding all that water. Shocked me, and taught me how important water is.

[julirama723]

Re: Do you really need EIGHT glasses of water?

Let's not forget that with all the fiber we're eating, if we DIDN'T drink water, we wouldn't be pooping for weeks. 1/4 cup of fiber retains/soaks up 2 pounds of water, or roughly 1 litre. It has to soak up that much water before it will "MOVE" out of our bodies.

And geez, if I didn't drink water (since I'm getting it all from my foods? ) I wouldn't be consuming any fluids...all I drink is water!

Personally, I think this "no water" thing is just a way to justify drinking toxic crap.

[Bluebelt2007]

Re: Do you really need EIGHT glasses of water?

Personally, I think this "no water" thing is just a way to justify drinking toxic crap.

Excellent point.

[Hudson]

Re: Do you really need EIGHT glasses of water?

I don't buy that doing Atkins is hard on the kidneys. If you have a kidney problem there are considerations. But to my thinking LC is better for you. Not just in general but better for every organ, and every inch.

I don't drink all the water Atkins suggests. More like 25-35 oz per day. But all I drink is water. And I fatigue of going potty 8 times a day.

Well I counted my water intake yesterday and it is closer to 50 oz a day. So I'm just a little short.

[julirama723]

Re: Do you really need EIGHT glasses of water?

If I drink less than a gallon I feel dehydrated, but in a given day I talk and sing and play instruments for hours (which uses lots of moisture and saliva), and I also have a pretty tough workout which dehydrates me further...

I think each person is different in their water requirements, but I strongly believe that water is still REQUIRED!

[not2late]

Re: Do you really need EIGHT glasses of water?

Consider, as well, that even Dr.Atkins considered this way of eating hard on the kidneys (not recommended for anyone with kidney issues). Water flushes the kidneys. Heck, drink the water. 8 glasses will never be bad for you (more can be, and less can be - 8 is pretty moderate).

Exactly, ketosis/lipolysis is a natural diuretic, hence the need to replenish the lost water.

Let's not forget that with all the fiber we're eating, if we DIDN'T drink water, we wouldn't be pooping for weeks. 1/4 cup of fiber retains/soaks up 2 pounds of water, or roughly 1 litre. It has to soak up that much water before it will "MOVE" out of our bodies.

Another good point.

Way back (well, not so way back) when I worked at a Children's Hospital, I asked a pediatric nephrologist about that water thing. I was told it was based on the total daily fluid requirements. See, whenever a baby, child or teenager needed complete bowel rest (ie no food/drink by mouth), they would calculate out the milliliters of fluid that patient would need, hence the total daily fluid requirement. Holliday-Segar Fluid Maintenance Formula. If you figure that formula out for the ideal "70 kg man", it comes to roughly 2 liters of fluid per day to satisfy the needs for your daily basal metabolism.

That's why I'm always kind of amused whenever I read these experts claim they "don't know where that idea came from" when I've heard it from pediatricians and adolescent medicine doctors for years (and they have the "science" to back it up.) I guess it only goes to prove what one 90 year old pediatrician told me :"Every doctor should be a pediatrician first in order to understand how and why the human body does what it does." But then in my experience of working in various clinics and hospitals, it's the pediatricians who are better with making sure their patients are adequately nourished and watered during hospital stays.

[spazzyhilo]

Re: Do you really need EIGHT glasses of water?

I know for me before Atkins I wasn't really drinking much water, maybe 8 ounces a week. I always felt tired and cranky and my skin was incredibly dry. Every time I put lotion on my skin would just absorb it like madness but would still be dry.

With Atkins I need to drink about 100 ounces of water each day and I have noticed a HUGE difference *other than having to pee a lot.* I have more energy, my skin looks and feels better, my muscles don't get as sore when I work out, even my hair feels healthier. I know part of that is thanks to the amount of fat I'm consuming but I also feel a large part of it is the water I'm now drinking. My body has gotten more used to what I'm drinking so the trips to the bathroom aren't as often as they were.

One thing I know is true, your body needs water so why not drink it?

[Chicklady]

Re: Do you really need EIGHT glasses of water?

I can't imagine not drinking at least 3, 20 ounce bottles a day. i would be thirsty! I'm not drinking it 'cause somebody said to, i'm drinking it because my body tells me I need it *shrug*