Does dextrose do anything besides spike your insulin in post-workout shakes?

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    Does dextrose do anything besides spike your insulin in post-workout shakes?


    I'm diabetic, so obviously this wouldn't be the case with me. Does it server other functions as well?

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    yes, the insulin spike is used to drive protein into the muscle. YJ has a post on how it works on here somewhere, just do a search...
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    I know that's what the insulin spike is for, but since I "spike" my own insulin anyway, is there a point to taking dextrose?
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    It also replenishes muscle and liver glycogen.
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    Is that something normal slower acting GIs could not do? (I'm not being sarcastic, I really don't know :P)
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    Dextrose can also be used to load on creatine since it creates an insulin spike thus transporting creatine faster to the muscle cells.
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    Originally posted by JohnGafnea
    Is that something normal slower acting GIs could not do? (I'm not being sarcastic, I really don't know :P)
    No, slower gi can do the same thing, it just occurs at a different rate.
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    I don't think dextrose is of much use to you unless you drop low. However, after a hard workout your non-insulin dependant GLUTs (GLUT2? I forget...I'll look it up if you want) will suck up a good amount of the available blood sugar so you may want a quick acting sugar to keep you from dropping too low...but you know that already. You can spike whenever you want so I don't see a special reason to take extra dextrose, although an acute dextrose dose followed with a quick acting insulin theoretically could shuttle more into your muscle. I say theoretically because, as you know things don't always work the way one would think they would in your state.
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    Cool, thanks guys.
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    Originally posted by MushMouth


    No, slower gi can do the same thing, it just occurs at a different rate.
    Is this to say it's slower but equal? Like in 3 hours it will be the same either way?
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    Originally posted by Hal
    GLUTs (GLUT2? I forget...I'll look it up if you want)
    GLUT-4.

    You basically get a double-whammy in terms of recovery, after you workout, from GLUT-4, and the insulin spike, to restore glycogen and stimulate protein synthesis.
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    Originally posted by JohnGafnea

    Is this to say it's slower but equal? Like in 3 hours it will be the same either way?
    No, not equal, because the "window of opportunity" slowly begins to close post-workout.

    It would be better than nothing, though, and given your condition, may be the best option.
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    Ah, thanks.
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    Diabetic here as well, I dropped the dextrose, it didn't do anything for me except made it harder to lose fat. I switched mainly to Low GI carbs and it has helped me cut up recently. Also it was hard to control BG levels afterward, I did dextrose for one month and my Hba1c was at 7 and I usually can keep it at about 5. Since I value my health more than bodybuilding I dropped most High GI carbs. Just something to think about.

    Cheers
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