Guest guest Posted June 12, 2004 Report Share Posted June 12, 2004 Not sure why there is all this confusion about whey. During cheesemaking, milk is separated into caseine and whey. Caseine (curds) is pressed to make cheese, the whey is a smelly liquid waste byproduct that used to be fed to pigs to fatten them up. Various extraction technologies result in purer and more undenatured protein peptides than others. Amino acids and protein peptides are not the same thing. The body has a higher absorption rate for protein peptides than individual amino acids. In fact, both compete for the same absorption sites and the amino acids will lose out to the peptides (which is why aminos need to be taken on an empty stomach). The more pure protein or predigested and smaller the molecule size of the peptides in whey, the faster the absorption and quicker the pro- anabolic spike. That is the purpose of whey, to increase the protein synthesis rate. Amino acids do not have this effect, probably because they cannot be absorbed and made bioavailable quickly enough. They seem to be a general waste of money except for certain specific applications (e.g. surgery recovery, blocking AGE's, repairing the intestines). Carbs and caseine are anti-catabolic, not pro-anabolic. However, whey when taken along with caseine (or fat/fiber) ceases to be absorbed quickly, thus negating its benefit. Note that with whey protein, roughly 50% is immediately oxidized with the rest contributing to anabolism if not constrained by other factors. Mother's milk is approximately 60% whey, 40% caseine. Obviously, the way to minimize catabolism and maximize anabolism is by ingesting high-insulinic carbs and whey protein simultaneously. Which is what post-workout drinks are composed of. Beyond that point, keeping catabolism at bay requires eating slow-releasing proteins (e.g. normal food) every several hours. Caseine is ideal for use right before bed to prevent fasting-induced catabolism. Logan Quote Link to comment Share on other sites More sharing options...
Guest guest Posted October 12, 2010 Report Share Posted October 12, 2010 Thank you for your comments and suggestion but freight from the US is prohibitive. What is the difference between undenatured and denatured? 2010/10/12 Duncan Crow <duncancrow@...> > Hi Grumpy; seems the website is not specific enough to say if the whey they > have is undenatured or has undenatured components. Can you get buckets of it > from the USA shipped into Sweden for personal use? > > all good, > > Duncan > > > > > > ------------------------------------ > > Quote Link to comment Share on other sites More sharing options...
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