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  1. #1
    Registered User Blackjack68's Avatar
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    Tuna vs. Whey/Casein Powder

    My understanding is that whey is absorbed quickly and is only used by your body for an hour or so, where casein starts slower and stays in use for up to like 6 hours.

    How does meat/fish protein, or even eggs stack up to that? If I eat a can of tuna before bed (22g protein) will my body utilize that for a long time while I sleep?


    Edited: Sorry, I accidentally said creatine instead of casein.
    Last edited by Blackjack68; 06-01-2009 at 01:47 AM.
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  2. #2
    Registered User Blackjack68's Avatar
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    Nobody knows......
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  3. #3
    Registered User quik366's Avatar
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    Originally Posted by Blackjack68 View Post
    Nobody knows......
    id like to know also - love tuna, quick and not to hard to get down.
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  4. #4
    Endorphin Junkie dopamine72's Avatar
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    pretty good question. I would like to know this also. I do know that tuna is better than any of that protein powder. I also know that your body doesn't absorb 100% of any type of protein powder and that real food is absorbed much better. Meat takes a while to digest so my guess would be that tuna should stay there just as long as casein powder. I usually have a can of tuna right before bed along with a whey protein shake.
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  5. #5
    Registered User pmpimbura's Avatar
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    ON casein tastes like a vanilla shake, albeit slightly watery.

    I'm not sure that I would want to eat a can of tuna straight before bed more than a vanilla shake. Also in terms of cost there is no contest. Tuna is more expensive than casein. Unless you have some crazy tuna hookup I don't know about.
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  6. #6
    Bulking JEUH!!!!!!!!!!!!! WhatDidYouDo's Avatar
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    It takes WHEY PROTEIN about 3hrs+/- to be fully digested

    According to http://www.bodybuilding.com/fun/layne42.htm
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    Registered User Blackjack68's Avatar
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    Originally Posted by pmpimbura View Post
    Unless you have some crazy tuna hookup I don't know about.
    I do..... Aldi's.... 56 cents for a can
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  8. #8
    Registered User pmpimbura's Avatar
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    Pretty good but I think the casein might still be slightly cheaper per serving...and you don't wake up with fish breath.
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  9. #9
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    Article on food vs. protein supplements debate
    http://www.formerfatguy.com/articles...s-vs-foods.asp

    Study on protein absorption rates:
    http://www.humankinetics.com/eJourna.../pdfs/5642.pdf

    Heres a couple highlights:
    Casein and Whey Protein
    Absorption rates of ?fast? and ?slow? dietary proteins, whey (WP), and casein
    (CAS) respectively, provide an interesting contrast in protein absorption kinetics.
    In a study by Boirie et al. (38), subjects were fed 30 g (336 mmol N) of labeled
    whey protein (13C-WP), or 43 g (479 mmol N) of labeled casein protein (13C-CAS),
    with the same amount of dietary leucine (380 μmol/kg), where postprandial leucine
    balance is used as an index of protein deposition (39, 48). The rapid absorption of
    WP in the first 3 to 4 h accounted for the vast majority of amino acid absorption in
    the order of 8 to10 g/h and ~ 6.1 g/h for CAS. A second study involved the repeated
    consumption of 2.3 g of whey protein every 20 min (RPT-WP), (a rate of ~ 7g/h),
    to mimic slowly absorbed amino acids. This was compared to a 30 g protein meal
    of amino acids (AA). Estimated absorption rates were ~ 8 g/h and 6 g/h for AA
    and RPT-WP, respectively (39).

    There's then a summary at the bottom of the page that shows food proteins absorb much slower then whey or even casein. It also states that Casein protein is far superior to whey protein despite the "misconception" around sports figures because it provides 4-9 times more protein synthesis. After this study I'm going to stick to Casein protein and eat a lot more egg whites (much like Tim Ferris did in his great article on here.)
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  10. #10
    Registered User Blackjack68's Avatar
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    Good info, thanks!
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  11. #11
    My Pussy and My crack tcatcrawler's Avatar
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    how's aldi doing financially? since it is a foreign company..
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    Registered User Blackjack68's Avatar
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    Originally Posted by tcatcrawler View Post
    how's aldi doing financially? since it is a foreign company..
    On a large scale, I don't know. Locally, here in southern Indiana, they are doing great. The place is always busy.

    For someone on a budget like me, Aldi's is a godsend! Good quality food and fantastic prices. Quick and easy shopping...... plus I hate Super Wal-Mart!
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