OOPS! I screwed up. Those numbers I gave for Isopure are wrong. Here we go again:
True Protein Ion Exchange
Per 100 grams
Leucine = 11.5
Isoleucine = 8.2
Valine = 6.9
Isopure
Per 100 grams
Leucine = 10.8
Isoleucine = 4.3
Valine = 8.7
Quote:
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Originally Posted by Myself
Isopure has more leucine (and valine) but the numbers for Isopure were rounded up so it has only a few grams more total BCAA's.
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Duh. I was going by grams per SERVING (62). Wrong! It's because Isopure has all that stuff added inot the product I looked at.
As I said before, though, if I buy an isolate for pre/post workout I will go with a filtered. Whether it be cold filtered or whatever. The difference in percentages is not enough to be worth the extra cost to me especially considering the amount of protein likely to be denatured in the Ion-Exchanged or Hydrolized products vs. the filtered product being much less denatured. More pure is not always better. The absorption times can hardly be calculated to make a difference even when we're talking Hydrolyzed and its peptides once you factor in the difference in quality. To me, many of these product are about simply being "the most protein per serving". But how much of that protein is left in a decent state?
I've noticed many of the isolate manufacturers saying how their's is only the highest quality whey by virtue of its being an isolate. Ridiculous. The amount of protein per serving has nothing to do with the "quality" of that protein. That's like saying that a soy isolate protein supp is better than the protein found in a soybean. My main point being that everyone should consider what they are actually getting for their extra bucks.
BTW, if you don't know what I mean by
denatured
To cause the tertiary structure of (a protein) to unfold, as with heat, alkali, or acid, so that some of its original properties, especially its biological activity, are diminished or eliminated.