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Old 09-18-08, 07:20 AM   #1
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Protein before a workout (Soy vs. Whey)

I'm looking to mix up some energy bars...basically to have the portability and convenience of a commercial bar but without the price. Plus I can also play with the formula to suit my needs. I've found I perform best with a little bit of protein in my system...not just as recovery, but beforehand too. So I think I'm going to go with a 4:1 carbrotein ratio. I've chosen my carbs, which are relatively easily processed (with a tiny bit of lower GI whole grains in there), but am not sure on the protein. I plan on going with an isolate...but which one? I love whey after a workout, but Hammer claims that it's more likely to produce ammonia (and cause fatigue) than soy when used before or during. However, most other companies seem to use whey (or other milk proteins...maybe casein?) in their pre-workout products (Powerbar, Accelerade, Infinit, etc). I'm not sure if this is because whey has the complete protein advantage, or if it's because of the soy and estrogen argument, or if Hammer's claims are just trying to sell its product. Does anyone have experience and/or knowledge about soy vs. whey as a pre-workout protein? Or if I should forget about both of them and be looking at casein or egg white protein or something completely different? I'll probably try both eventually, but if anyone has any information to help me get started, that would be great! Thanks in advance!

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Old 09-18-08, 09:55 PM   #2
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Hammer sells both types, so it's not that. I follow Hammer's advice for my during-the-ride liquid, but I know people who use whey or products with whey and they don't seem any worse off than I am after a hard ride. I've never seen any research to back up Dr. Misner's claims on this. The energy bars I make use chocolate flavored whey and they're fine, but I mostly consume them when hiking or climbing, rather than riding.
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Old 09-19-08, 03:54 AM   #3
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i started taking 100% whey before my workouts. I like it so far.
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Old 09-19-08, 09:10 AM   #4
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I avoid soy like the plague; not only for the estrogen but it's also one of the most incomplete sources of protein. You need more of it to get the same benefit which wipes out the cost advantage. I prefer a mix of whey protein isolate, casein and egg white.
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