Okay - I would REALLY love to hear Dr. Herring's take on the factoids listed on Lyle McDonald's website. Here's the disconnect for me, with an initial caveat that I understand full well that research is ongoing and NO ONE really has all the complete answers: The idea that leaner individuals lose more lean body mass (LBM) than heavier individuals, to me, is inconsistent with some of the information I've read (including Fast5) stating that LBM is really only catabolized once you've been fasting for around 72 hours. Also, the same research indicates that test subjects that weight trained experienced only a negligible LBM loss even on an 800 calorie diet. I feel that Lyle McDonald's article (and the study he's referencing) are really interesting; I just wonder if the LBM loss is really only an issue for someone with really low bodyfat ( I don't know, like well under 10%?). According to the way I interpret the F5 book, someone wouldn't really experience a significant loss in muscle mass unless they really had no fat in their system to draw from during their fasting period. One of the reasons I appreciate mcDonald's article is because he's the first to admit that there's not enough data to create a gospel out of what he's written (likewise Dr. Herring), but I can't help but think that for a weight and cardio-training individual that fat loss would remain simliar, with other calories being diverted to muscle repair and LBM essentially being protected. --- On Sat, 5/16/09, Rick Stewart <rstewart@iaff.org> wrote:
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