Quote:
Originally posted by welfareloser
umm, no, that's dead wrong. protein is hard on the body, period. you can only digest about 15% of what you ingest, and the rest tears through your liver, kidneys, etc. if you suddenly up your protein intake to 60-70% of your daily calories (as protein diets have you do) instead of the normal 10-15%, you are putting 4-7 times the wear on all the systems of your body that have to deal with protein. people tout things like "it's never been proven to cause harm in humans" but they can do that because no long-term studies have been done on humans. the longest-running protein diet study i've ever seen was 5 years. not long enough.
of course you lose weight on a protein diet. since you can only digest such a small amount of it, it is a starvation diet. bad.
if you look at studies in other mammals, you can find hundreds of awful things that fall apart within the equivalent of twenty human years. and if humans resemble animals as closely in this as they do in every other nutritional study (and i am 99.99% sure they would)this is exactly what will happen to a human.
that said, minor tweaking, like having a protein shake for breakfast every day, upping your protein intake to 20% or so, you're fine.
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I think he meant protein drinks (which often contain more than just protein, like Creatine or what not). These drinks are always high in calories so drinking them and not making use of all that energy can make you gain weight. What scared me was that I was able to gain 10 pounds in about 6 weeks. There's no doubt that this stuff works. But as welfare pointed out, extended studies on these diets (including Creatine intake) haven't been really been done.
I have to agree with you on the fact that its talks a toll on your body and its organs (liver, kidney).
The problem is that no meal supplement is pure protein nowadays. (I don't think the Whey Protein drinks are either, check the ingredients).
I've read articles of some body builders taking protein meal supplements that had digestive system problems after extended use. I saw it on a a few years back. Which is why I stop taking it mine on a regular basis.