Can you mix a post-work out shake and let it sit?

  • Posted by a hidden member.
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    Sep 30, 2008 6:21 PM GMT
    Haven't been able to dig up anything on the forums, and the containers don't say anything, so wondered if any of you had any insight:

    Say I want to mix up some gatorade and glutamine to put back after my workout; can I mix it in the morning, then leave it sitting in my gym bag for a few hours until I finish my work out? Just wondering if it loses any effectiveness or anything.
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    Sep 30, 2008 8:07 PM GMT
    Shouldn't be much of an issue. If there's any 'degradation' it would be negligible. If it get's hot (like sitting in a closed car in the sun) then you might have a problem, but that can be addressed by putting ice in it after it's mixed.
  • MSUBioNerd

    Posts: 1813

    Sep 30, 2008 8:13 PM GMT
    My only concern would be what you're mixing it in. If you're mixing it into milk and then leaving it where it will get hot--inside a car in direct sunlight, for example--the milk can spoil pretty rapidly. But a few hours is unlikely to do anything significant to the mix.
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    Sep 30, 2008 8:41 PM GMT
    novembermike saidHaven't been able to dig up anything on the forums, and the containers don't say anything, so wondered if any of you had any insight:

    Say I want to mix up some gatorade and glutamine to put back after my workout; can I mix it in the morning, then leave it sitting in my gym bag for a few hours until I finish my work out? Just wondering if it loses any effectiveness or anything.


    I'd actually like to know this too. When school starts I don't think I'll have the time to run home; prepare everything and still get to class.
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    Sep 30, 2008 8:50 PM GMT
    If you have an open gatorade solution at room temperature, bacteria and fungi will grow in it pretty rapidly, especially if you take a sip out of it from time to time. (My bike bottles get pretty nasty if they sit around for any time.)

    If you use creatine, I think it hydrolyzes pretty rapidly if the pH is at all acidic, so you probably wouldn't want that sitting around.

    Can you mix the dry ingredients in a container and just add water and shake it when you're ready for it?
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    Oct 01, 2008 12:54 AM GMT
    mindgarden said
    Can you mix the dry ingredients in a container and just add water and shake it when you're ready for it?


    Yeah, I'll try that.

    I usually use a bottle of gatorade over about two days, I hadn't even thought of that growing nasty stuff on its own...

    Ghen, my problem exactly is fitting a timed workout/nutrition schedule around classes, especially since the classes might not move but homework, projects, and tests mean occasional, often unplanned, adjustments.

    So I'll try keeping the dry stuff separate, in a shaker or something. Next concern, is if it IS sitting in a warm car for hours... will THAT mess it up?

    Nothing too crazy in the mix, glutamine and creatine, basically.
  • Posted by a hidden member.
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    Oct 01, 2008 1:26 AM GMT
    A glutamine pill may be better for you. You may pay a little more for the pill rather than a big tub of glutamine, but it's much easier!
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    Oct 01, 2008 2:01 AM GMT
    You may have to shake it up again if you let it sit icon_biggrin.gif

    Anyone ever notice how whey protein smells like rotting meat if you let it sit too long after mixing it up?
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    Oct 01, 2008 2:46 AM GMT
    flex89 saidAnyone ever notice how whey protein smells like rotting meat if you let it sit too long after mixing it up?


    YEAH IT DOES! GOOD GOD!
  • B71115

    Posts: 482

    Oct 01, 2008 3:46 AM GMT
    I agree about putting the mix in a container to add water later. I even do it at the water fountain as I'm leaving the gym. Perfect.
    I mixed up a meal replacement shake and left it in the fridge once and it looked GROOOOSSS when i went back. Just shook it up again, but it does make me wonder what is in there.
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    Oct 03, 2008 4:14 AM GMT
    Yeah it's usually "pre-digested" or "broken down" whey proteins... they digest easy and, if left to sit, degrade real fast. I guess it smells like rotting meat because meat = protein = post-workout-shake-key-ingredient.


    My post-workout shakes ALWAYS smell like warm roadkill if I leave them out icon_biggrin.gif
  • MikemikeMike

    Posts: 6932

    Oct 03, 2008 7:02 PM GMT
    easy solution- keep em cold and drink them within the hour-done.
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    Oct 03, 2008 7:28 PM GMT
    Just take your Glutamine (in water) first thing in the morning as soon as you wake up and just before you go to sleep at night....Ive read many articles on this supplement and that seems to be the times that all the experts recomend.