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Thread: Can food substitute water?

  1. #1 Can food substitute water? 
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    Is there any evidence to suggest that one can actually survive without drinking water? I have heard an argument which states that the food we eat will produce enough water for us to survive. Now, we all know that food can produce water, but does this mean that we don't have to drink water at all? I would imagine that we need to drink at least a little water everyday. Right?


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  3. #2  
    Universal Mind John Galt's Avatar
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    I am not intending to be facetious, but if you decided to live on soup alone, then you would almost certainly be able to obtain sufficient water.

    You really have to consider two aspects:
    1. Requirement - this will vary with the environment. If you are engaged in hard physical work in the tropics your water requirements are likely to be an order magnitude higher than a sedentary occupation in an air conditioned setting.
    2. Water Content - what kinds of food are you eating. Fresh fruits and vegetables have a high water content. Nuts and dried fish don't.

    A sensible diet will include an appropriate water intake. Remember that if you feel thirsty you are already dehydrated. I understand that some feelings of hunger, which can lead to overeating and obesity, are actually caused by thirst.

    I wouldn't recommend experimenting: dehydration causes kidney damage and increases the risk of stroke.


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  4. #3  
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    but in order to obtian that water, form siad food's, wouldn't you need water for the reaction to take placE?
    Stumble on through life.
    Feel free to correct any false information, which unknown to me, may be included in my posts. (also - let this be a disclaimer)
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  5. #4  
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    You could easily get your water from fruit, if you ate a lot of it.
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  6. #5  
    Universal Mind John Galt's Avatar
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    Quote Originally Posted by goodgod3rd
    but in order to obtian that water, form siad food's, wouldn't you need water for the reaction to take placE?
    I don't understand your question. All foods contain water. The amount varies. As I suggested, tongue in cheek, soup would be a good choice, since it is mainly water.
    Fruits, as sciforefugee notes, contain a lot of water. Cucumbers are more water than anything else. Or, watermelon.

    So, what reaction are you talking about?
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  7. #6  
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    Thanks for the replies. I just want to make clear that I am not considering a no liquid water diet. :-D
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