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Old 07-24-2012, 03:41 AM   #1  
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Default ok...seriously folks...warm or cold water?

I can't sleep so, of course, I am obsessing over relatively trivial things. I have heard reputable people saying both that iced water is absorbed faster in the stomach and that room temperature water is the fastest. Which one is correct? Does anyone know the science behind this?

To me, it doesnt make sense biochemically for iced water to be easier to absorb. Your body resists sharp temperature changes and that would severely drop your core body temperature to absorb cold water so it makes sense that the body would want to warm it up first. This article (which is really old so might have been disproved for all I know) seems to support that: http://www.sciencemag.org/content/181/4105/1166.short

But many people, including that extreme makeover weightloss guy, says it is the reverse so, if that is the case, can anyone explain why?!
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Old 07-24-2012, 04:33 AM   #2  
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Go to sleep, stop making me think all hard at it, Geez!

Room temp water, how's that? Neither hot nor cold. Bwahahahaa! seriously. Go to sleep and let's not speak of this again.

FYI, I have RLS ( restless leg syndrome) and I refuse to take drugs to sleep through it. The only reason I like winter is because going outside and sinking my restless feet into a big ol pile of snow instantly relieves my symptoms. Summer...not so helpful.

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Old 07-24-2012, 09:38 AM   #3  
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Wow! Snow really helps? Do ice packs help?

Anyways, I really still wanna know the answer. Surely there is a reason why so many "experts" disagree.
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Old 07-24-2012, 09:46 AM   #4  
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Because it doesn't matter and focusing on water temperature gives you something to pay attention to and succeed at (or cheat with and get the cheat out of your system without caloric consequences).
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Old 07-24-2012, 01:47 PM   #5  
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I can't think of any reason why the speed of absorption would matter in the real world. Now if you were hypothermic, camping in in the winter, warm water might be safer/healthier than ice water. Likewise, colder water may be helpful if you're overheating (but I have heard that too-cold water on a very hot day, can actually cause painful muscle cramps - don't know if this is true or not).

But in the scheme of things I can't see why it matters (especially if you're measuring your water intake as many dieters do).

Otherwise, I can't think of any advantage water temperature would have.

In junior high, I remember learning that cold water actually has a negative calorie count, because warming the water and keeping our body temp constant burns extra calories.

I remember being really excited about that, until the teacher proved that amount of negative calories was insignificant. To get one negative kilocalorie (the calories we count) you'ld have to drink a very large amount of ice water (I don't remember how much, just that I was very disappointed that drinking very cold water wasn't going to help me lose any weight).

I don't like room temperature water, so I usually don't drink it. I prefer my water cold, so that's how I usually drink it. In the winter, I like warm beverages sometimes, so when I want a warm beverage, that's what I drink.

Olympic athletes (where even a fraction of a second can be important) may have a reason to care how fast water is absorbed into their body, but I can't see a reason why the average person would or should care.
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Old 07-24-2012, 02:52 PM   #6  
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Aren't they both absorbed the same, but just force your body to slightly raise or lower its internal 'thermostat' to compensate? I think only water with electrolytes would hydrate you faster, but I'm not sure if that's what you meant by absorb.
Do you mean to leave the stomach faster, maybe?

I took a look at that abstract, and it refers to cold water affecting the rats' sensation of thirst. It doesn't say if that is outright cased by slower hydration, but maybe the full study goes into more detail?

I know if I feel hungry, warm water makes me feel fuller than cold water... but that doesn't really answer any questions, either.

Last edited by vabs; 07-24-2012 at 02:59 PM.
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Old 07-24-2012, 03:07 PM   #7  
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lol ok i will stop obsessing :P it just annoys me when people authoritatively say things that they cant back with proof. And this one especially annoys me because I hear it stated both ways.
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Old 07-24-2012, 03:11 PM   #8  
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Quote:
Originally Posted by vabs View Post

I took a look at that abstract, and it refers to cold water affecting the rats' sensation of thirst. It doesn't say if that is outright cased by slower hydration, but maybe the full study goes into more detail?
well it says it lowers osmotic blood concentration faster (in other words it was absorbed faster in rodents.)
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Old 07-24-2012, 03:15 PM   #9  
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http://www.livestrong.com/article/47...or-cold-water/

Quote:
When you drink water, your body heats the water up to body temperature, which for most people is about 98.6 degrees. A 2006 study published in "The Journal of Endocrinology and Metabolism" estimates that you should burn about 17 calories heating 16 oz. of cold water. If you drink 8 cups of water a day, this sums to 68 calories per day, or about 7 lbs. per year. However, when the researchers examined the actual calories expended heating up 16 oz. of water, the subjects burned only an additional 3.5 calories over 90 minutes. This amounts to only 14 calories per day and sums to less than 1 1/2 lbs. per year. So, your best bet is to drink water whatever way you like it. If you prefer your water a bit warmer, the benefit on appetite suppression of drinking more water outweighs the few calories you'll burn having your body heat up cooler water.
Bold added for emphasis. Drinking cold water does make a difference in burning calories but not a significant one. I wasn't able to find anything about absorption.

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Old 07-24-2012, 03:45 PM   #10  
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Quote:
Originally Posted by katkitten View Post
... it just annoys me when people authoritatively say things that they cant back with proof. And this one especially annoys me because I hear it stated both ways.
When it comes to health and weight loss this is so prevalent you have to learn to "let it go," or you'll drive yourself absolutely bonkers because there are ALWAYS people saying authoritatively unproven and contradictory statements.

For that matter, I'm not sure there's a topic on the planet in which people aren't always saying authoritatively unproven and contradictory statements.

I'd even wager that most of what ALL OF US "know as fact" actually isn't fact at all, but opinion.

I even catch myself doing it, stating opinion as if it were fact. It's just what humans DO. Because if we didn't trust the validity of our opinions, we wouldn't HAVE an opinion on the subject in the first place.


One of my own pet peeves, is people arguing that "efficient digestion" is a good thing when it comes to weight loss. They'll argue that one should eat foods that are easily or efficiently digested... that makes no sense for weight loss - because the more "efficient" digestion is, the more calories are absorbed and the fewer that are burned.

This is the first thing I thought of when reading the OP. Wouldn't one want inefficient water absorption, because the body would have to "work harder" (that is burn more calories) to accomplish the desired result?


Whenever I hear anyone state any questionable fact (on weight loss or any topic), I have to ask myself "Is this important, and does the "truth" really matter to me?"

If I didn't ask that question, I could spend all day online or even in person, "correcting" people. Not only would that drive me to murderous insanity, it would do the same to the people I "corrected."

My hubby is a GREAT guy, but he's a lousy speller and he misuses words CONSTANTLY both in spoken and written language. He'll often substitute a similar sounding word. I know the word he actually means, and in my head I have to say "he means x, not y".

I had very little patience for such mistakes before my fibromyalgia symptoms manifested severely. My cognitive symptoms (the cognitive difficulties often called fibrofog) during a flare now interfere with my own logic circuits. At it's worst I will spell phonetically (even crazy stuff that I've never mispelled like was, becomes wuz), I will misuse words (all day on Easter, I kept calling it "Thanksgiving"), and I'll even slur words.

As a result, I'm no longer the grammar **** that I once was (I didn't often correct people out-loud, but I did do so mentally).


Grammar and word choice may not seem to be the same issue, but it's only one "mistake" people make that used to drive me crazy. Any inaccuracy or myth-taken-as-fact would drive me bonkers (and because people make the mistakes so frequently, I was spending way too much time bonkers).

There are issues that are hot-buttons for me. They're important enough that I feel the desire to educate, which is why you'll see me repeatedly weigh-in on the artificial-sweetener and water-drinking debate. Because the myths and mythunderstandings (misspelling and bad pun intended), on these topics, very few people (probably including me) will admit that their opinions are not facts.

I can state my opinion, and the multitude of EVIDENCE supporting it, and some people are still going to argue that I'm an idot and that only THEY know the real facts and they know their statements are fact because Dr. Oz or some other celebrety says so (because we know celebrities are always right).

The only thing more accurate than a celebrity "expert," apparently is an urban legend conspiracy theory, especially if it is dispersed by email.


In the scheme of things, how fast water is or is not absorbed (and what that has to do with anything) just isn't on my radar of potential inaccuracies to care about. Now if it was being argued that there was some amazing health benefit to a particular absorption rate, maybe I would care.

So unless a specific water temperature produces incredible weight loss, cures cancer, somehow triggers immortality, or some other spectacular health benefit, I don't really care how quickly water is or isn't absorbed.
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Old 07-24-2012, 09:31 PM   #11  
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Quote:
Originally Posted by kaplods View Post
When it comes to health and weight loss this is so prevalent you have to learn to "let it go," or you'll drive yourself absolutely bonkers because there are ALWAYS people saying authoritatively unproven and contradictory statements.
how true lol
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