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Thread: Whey or ISO?

  1. #1
    Registered User Pety-Pipper's Avatar
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    Whey or ISO?

    I went to my local supplemt store today to grab some whey and casein and i was talking with the guy and was telling him how im cutting and he recomended to use ISO protein after my workouts because it absorbs within 30 min. What are the pros and cons of using ISO if your cutting appose to Whey?
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  2. #2
    Cutting Member sxgt's Avatar
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    I get the whey at walmart , no substitute for food.
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    Registered User second-chance's Avatar
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    Originally Posted by Pety-Pipper View Post
    I went to my local supplemt store today to grab some whey and casein and i was talking with the guy and was telling him how im cutting and he recomended to use ISO protein after my workouts because it absorbs within 30 min. What are the pros and cons of using ISO if your cutting appose to Whey?
    He was probably referring to Isolate when he said ISO, but you can have whey isolate. So he was probably referring to whey concentrate when he just said whey. A whey isolate has a higher biological value, a higher absorption rate and is generally a more pure protein than whey protein concentrate. All round an isolate is better than a concentrate for cutting or gaining muscle. Ideally real food trumps all.

    Then the next step up for speed of absorption would probably be hydrolyzed whey isolates. A much slower absorbing protein would be a casein, but you are talking about another whole arena of proteins. I personally use all the above but at different times of the day and for different purposes. Hope that helps answer your question
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    nevigsawkufelgnisaton in10city's Avatar
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    Originally Posted by Pety-Pipper View Post
    I went to my local supplemt store today to grab some whey and casein and i was talking with the guy and was telling him how im cutting and he recomended to use ISO protein after my workouts because it absorbs within 30 min. What are the pros and cons of using ISO if your cutting appose to Whey?
    What is this "whey"? A blend of different whey types?

    On an absolute scale - there are differences - depending upon what criteria you are evaluating. While WPI is generally a higher quality product than a bend, unless you are living off it or have digestive problems with the protein (lactose), there will be little difference in practical "results" (define it) at the end of the day as long as you pick a quality protein that's processed correctly. That's probably what's more important to evaluate.

    Just to highlight a few...
    http://www.bodybuilding.com/fun/willbrink3.htm
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