excess protein calories stored as fat??

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    Question excess protein calories stored as fat??

    i have someone telling me that excess calories from protein are not stored as body fat.

    it's still excess calories. and excess calories are stored as body fat.

    can someone give me a few good links to help me with evidence?

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    So basically lets assume I eat only protein all day.

    Lets just say I eat 800 g of protein which works out to about 3200 cals.

    Lets assume that this is over my BMR, so the excess cals will just disappear and I won't get fat

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    that's what the other guy is saying.

    i still say excess calories = fat gain.

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    Right, that is the basic concept Cals in vs Cals out. They don't just magically disappear.

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    thank you.

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    I'm pretty sure you piss out excess protein and it is not stored as fat.
    Quote Originally Posted by kbm8795 View Post
    Oh, I think Americans understand that the one thing conservatives hate the most is the idea of spending American tax money on Americans. . .in America.


    Your tax money is safe. . .in Iraq.
    Total ownage.

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    Quote Originally Posted by BigDyl View Post
    I'm pretty sure you piss out excess protein and it is not stored as fat.
    I can never tell whether you are being sarcastic or not.

    If not I would like to see a source that states that.

    Protein when digested is broken down into peptides and then amino acids. What isn't used is then converted by the body to either Glucose or Fat. If it isn't used up it is stored in the fat cells.

    Some calories are expended during this process, and it isn't that efficient, but the body finds way to use the macros, that are consumed.

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    Leave it to a Canadian to clear it up.

    SheLifts, is he worth convincing??

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    In excess the nitrogens are removed and urinated out then the liver can turn it into glycogen and fat from there or what ever. it's been too long since i've read about that - of course it can be stored as fat heh.
    "I'll eat all the damned Ham, Cheese, Tomato, Onion toasted sandwhiches I want." -Val

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    Quote Originally Posted by Mango View Post

    SheLifts, is he worth convincing??
    i'm the moderator of the health and fitness section at this particular forum. i think it bothered me that he would try to tell me that i was wrong.
    maybe it's an ego/pride thing and i wanted to makes sure i was right and he was wrong....

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    Or -

    if you are training your muscles with a fair amount of intensity it can be stored as muscle.
    fufu's 1337 Journal

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    She is completely wrong! Excess protein turns to glucose and too much glucose will be stored as fat. It's called gluconeogenesis. It mimics insulin. Now if you are on a low carb diet, this won't really do too much other than produce glucose that your body doesn't have. However, if you are not on a low carb diet (50-75G carbs per day) then this converted glucose will be treated like the rest of it in your body and if you spill over your storage levels, it will get turned into fat.

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    Quote Originally Posted by Valias View Post
    In excess the nitrogens are removed and urinated out then the liver can turn it into glycogen and fat from there or what ever. it's been too long since i've read about that - of course it can be stored as fat heh.
    I'm in 100% agreement here.

    Also, the keytone byproducts of de-amination will put added stress on your liver. Glucocorticoid levels will rise as a result (causing an increased insulin resistance) This added stress will actually make fat storage more favorable than normal as well as hamper your ability to digest properly. The later, mostly only under more extreme or prolonged cases. Prolonged elevated corticoid levels (as well as short term High levels) divert blood flow from the digestive organs.

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    From what I understand, most people tend to eat a mixed diet with at least a little of each macro. In a caloric surplus, ingested fat tends to be stored first I think because it is already in an immediately storable form. Protein will be the least likely to be stored since it has to be converted to cho and then to fat as noted above.

    Additionally, that conversion tends to be energy expensive and inefficient. Unless someone has come up with new info, protein is still ~15-25% thermic with cho being more like 10 and fat barely any (1-2% thermic or so). So it is tougher to get to a caloric surplus using protein only.

    As a practical matter, I find that very high protein diets with moderate carbs make bulking nicer for me. Water retention isn't a big problem which makes tracking gains easier. OTOH, past a certain point, consuming massive amount of protein may produce some excess stress on the body and can be viewed as a costly cho source by many. To each their own.

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    Quote Originally Posted by Cardinal View Post
    Additionally, that conversion tends to be energy expensive and inefficient. Unless someone has come up with new info, protein is still ~15-25% thermic with cho being more like 10 and fat barely any (1-2% thermic or so). So it is tougher to get to a caloric surplus using protein only.


    The energy balances for breaking down these macromolecules are directly related to the stresses they cause on your body.

    These factors should scream to you that the 'maintenance' energies required are NOT on a linear scale. The more stress on the body from external sources, the highly the standard levels of catabolism for that individual. The higher the level of natural catabolism, the lower the required level of maintanace Kcals from an external source(dietary consumption).

    This is all a factor of efficiencies in an individual's metabolic pathways. This is exactly why somebody should never adopt another person's diet because it works for 'them'.

    For all of these reasons, it is illogical to suggest that energy from one specific macromolecule would be better than another.
    Last edited by Luke95; 02-01-2007 at 07:19 PM.

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