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How much water is too much?


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Just curious really... does anyone know what the MAXIMUM amount of water you could safely drink in a day is? The bodyweight calculator told me to drink 120oz a day, which is 8 LARGE glasses. I usually only have six, but the other day I had so much salt that I wanted to have even more, but I didn't think it sounded like a good idea... (I very rarely drink anything other than plain filtered tap water).
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it is possible to drink so much that you rupture your bladder... but you would also have to be holding your pee.  This happened and killed someone in california who was trying to win a VW bug.

However, Barring odd behavior like that it is pretty hard to Overhydrate.  But there is a risk of washing out water soluble nutrients.  I would keep an eye on the color of your urine, if you start peeing clear it might be time to set the water a side for a bit.  :)

#2  
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Hate to say this, but "it depends".  Mainly, it depends on what you're eating - since fresh fruits and vegetables contain a lot of water by weight, if you eat a lot of them you're getting more water than you think (in fact, this water should ideally be counted in the "6 to 8 glasses a day", but most people don't).  Also, if you're perspiring heavily you will lose a lot more water, hence you'll need more water just to replace what you've lost.

Basically, drink when you're thirsty, and don't worry about "6 to 8 a day" - a quick Google search will show you that nobody is actually entirely sure where that advice came from in the first place. 

#3  
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Original Post by lilsmiter:

it is possible to drink so much that you rupture your bladder... but you would also have to be holding your pee. This happened and killed someone in california who was trying to win a VW bug.

However, Barring odd behavior like that it is pretty hard to Overhydrate. But there is a risk of washing out water soluble nutrients. I would keep an eye on the color of your urine, if you start peeing clear it might be time to set the water a side for a bit. :)

Actually, "water intoxication" is more likely than rupturing your bladder - basically, you drink so much water that you dilute your electrolyte level and body systems just shut down. A woman died this way last year in a "Hold your wee for a Wii" contest held by a radio station. I believe the wrongful-death suit is still pending.

(Edit)  Interestingly, Andy Warhol also apparently died of water intoxication. 

For more information about water intoxication, see http://en.wikipedia.org/wiki/Water_intoxicati on

I drink probably 6-7 bottle of water each have 16.8 oz so every bottle is 2 glasses of water (8oz), plus I eat vegetable and fruits, and work out. I just feel like 8 glasses are not enough
I think a "glass" is considered to be 8oz
#6  
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It would take alot , and I mean alot of water to harm you. It is a good thing to drink alot of water, it makes you feal fuller! There have been a few cases of death by water, but mostly in children or the elderly with heath problems and on medications....but yes salt intake will increase your thirst!

SSNOW

i try to drink lots of water & it's never hurt me.  i just get sick of it sometimes  LOL  like today...  i'm on a water strike!  for today...

Most people do not have any problems with drinking too much water.  A good rule of thumb regarding the amount of water you should drink is to drink in ounces half your body weight in pounds.  That is sort of baseline.  If you work out a lot or eat a lot of sodium, or if it is really hot, you should drink more.  In the summer, when it is really hot, and you are active, drinking two gallons of water a day is totally reasonable. 

There is a really unusual and fairly rare psychiatric disorder called polydipsia where people comsume a pathologic amount of water.  Enough that it causes their electrolyte balance to become life threateningly out of balance.  But, as I said that is rare, and usually associated with schizophrenia; and involved many gallons of water a day over time.

http://chemistry.about.com/cs/5/f/blwaterinto x.htm

This may be of some interest to you. They are the facts!

I wouldn't worry too much about drinking too much water, death and illness associated with too much water consumption are extremely rare BUT much published as it appears to go against everything that we are told by health officials. I think its only a potential problem whilst exercising for a prolonged period of time whereby your body is depleted of sodium via sweat and heat exhaustion. Other than that i think 8 LARGE glasses is perfectly reasonable! 

Actually, I am in nursing school and you should have 64 oz per day minimum and not over 8 oz more because it can overhydrate your cells and cause what is called hyperosmolarity causing your red blood cells to swell and therefore causing you to swell.

 Original Post

Actually, I am in nursing school and you should have 64 oz per day minimum and not over 8 oz more because it can overhydrate your cells and cause what is called hyperosmolarity causing your red blood cells to swell and therefore causing you to swell.

 Question?

What if you just exercised doing cardio for 2-3 hours non stop, and are sweating like someone just threw you in a pool?? Then can i drink more water, to replace what i just lost?? 

Oh dear,

I easily drink a gallon of water a day, drink lots of caffein free herbal tea and eat lots of fruits and vegetables.

I also exercise at least two hours a day.

My doctor recently said that the reason my skin looks so good at my age is because of all the fluid.

Is it really harmful to drink more than 64 oz plus 8?

It's Not How Much You Drink, It's How Fast You Drink It!

The kidneys of a healthy adult can process fifteen liters of water a day! You are unlikely to suffer from water intoxication, even if you drink a lot of water, as long as you drink over time as opposed to intaking an enormous volume at one time. As a general guideline, most adults need about three quarts of fluid each day. Much of that water comes from food, so 8-12 eight ounce glasses a day is a common recommended intake. You may need more water if the weather is very warm or very dry, if you are exercising, or if you are taking certain medications. The bottom line is this: it's possible to drink too much water, but unless you are running a marathon or an infant, water intoxication is a very uncommon condition.

Taken from

http://chemistry.about.com/cs/5/f/blwaterinto x.htm

This is suggesting that it IS safe to drink up to 96oz of water a day and even more if you are exercising or in warm weather conditions. 

I have yet to find any evidence to suggest otherwise. 

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