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Thread: Is it possible to replace real food entirely with a liquid based diet?

  1. #1 Is it possible to replace real food entirely with a liquid based diet? 
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    I realize this is kind of a strange question but I'm serious. Is it possible to exist entirely on a nutritionally infused liquid diet? By liquid I don't mean like thick shakes, I mean an actual scientifically created liquid diet that gets passed entirely through the urine, eliminating the necessity for, um, number 2? Would that be dangerous? Aren't some coma patients kept alive entirely via an IV?

    Does such a all liquid food replacement exist?

    Thanks.


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  3. #2  
    Malignant Pimple shlunka's Avatar
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    Yeah if you don't mind perpetual diarreha.


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  4. #3  
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    Quote Originally Posted by shlunka View Post
    Yeah if you don't mind perpetual diarreha.
    no, lol...but why wouldn't it all be sent out through the urine?
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  5. #4  
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    In practical terms it is possible to keep a person alive for weeks on IV nutrition but not without long term negative effects. The patient will lose weight , muscle tone and bone mass. When it is necessary to feed a comatose patient usually a nasogastic feeding tube is put in and nutrition is introduced to the stomach this way. The human body is designed to be feed through the gastro intestinal tract and attempts to bypass this route do not work well. There are medical products designed to be absorbed entirely in the upper portion of the GI tract and have little residue, but if the entire GItract is present there will be some sort of bowel movement if only of digestive juices and mucus. Also there might be a problem of excessive bacterial growth in the inactive lower GI tract. For optimal health the contents of the bowel need regular emptying.
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  6. #5  
    Forum Radioactive Isotope cosmictraveler's Avatar
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    Eating on the Gemini missions improved somewhat. Bite-sized cubes were coated with gelatin to reduce crumbling, and the freeze-dried foods were encased in a special plastic container to make reconstituting easier. With improved packaging came improved food quality and menus. Gemini astronauts had such food choices as shrimp cocktail, chicken and vegetables, butterscotch pudding, and applesauce, and were able to select meal combinations themselves.
    By the time of the Apollo Program, the quality and variety of food increased even further. Apollo astronauts were the first to have hot water, which made rehydrating foods easier and improved the food’s taste. These astronauts were also the first to use utensils via the "spoon bowl," a plastic container that could be opened and its contents eaten with a spoon. Thermostabilized pouches were also introduced on Apollo.
    The task of eating in space got a big boost in Skylab. Unlike previous space vehicles for astronauts, Skylab featured a large interior area where space was available for a dining room and table. Eating for Skylab’s three-member teams was a fairly normal operation: Footholds allowed them to situate themselves around the table and "sit" to eat. Added to the conventional knife, fork and spoon was a pair of scissors for cutting open plastic seals.

    http://www.nasa.gov/pdf/71426main_FS...10-079-JSC.pdf


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  7. #6  
    SHF
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    Vampire bats have a liquid diet (whole blood). Though it does go through their digestive tract not straight into their circulation. As mentioned above IV nutrition isn't a long term option.
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