<br><br><div><span class="gmail_quote">On 9/24/06, <b class="gmail_sendername">Ensel Sharon</b> <<a href="mailto:user@dhp.com">user@dhp.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>b) second and third order side effects of meat such as increased<br>testosterone production, increased aggressiveness and greater<br>strength/mass from causes other than just the protein in the meat itself.<br>[snip]<br>
(b) is highly speculative and difficult to prove - and perhaps even undesirable.</blockquote><div><br>Ultimately it may be a U-shaped function. One probably wants to build up the greatest cellular reserve capacity as possible when one is young before it gets "frozen" by puberty [1]. Then throughout much of life you want to weigh as little and consume as little oxygen as possible (because it is the primary source of the free radicals). That means caloric restriction to the greatest extent one is able. As one gets older and the cells become less efficient (or die completely) it would seem to make sense to try to supply the still functioning cells with as much raw material as they can possibly utilize.
<br><br>The entire micronutrient debate is *way* overblown (because there is a market for people who want to do anything other than hard core caloric restriction). It won't be gotten "right" until whole genome genotyping is available for individuals and one knows for certain what metabolic "defects" one has which are potentially lifespan limiting. For example whether testosterone is good or bad may depend upon which testosterone receptor variations one has, what uncoupling protein gene variants one has, what growth hormone production gene variants one has, etc., etc. Other than CR there are few (or no) one size fits all answers no matter how much people who write books or provide health prescriptions for the masses would like to "make it so".
<br><br>It is clear that greater muscle mass and strength may be essential to reducing ones hazard function (e.g. falls, hip fractures, etc.) when one is older. But prior to that time it may simply serve to increase ones oxygen consumption producing more free radicals and aging all of the systems involved in "whole body" maintenance at a more rapid rate.
<br><br>Robert<br><br>1. I'll freely admit that one is probably up against relatively hardwired personal genomic limits in these areas.<br></div><br></div>