There seems to be a major misconception, that you are maintaining the CRON lifestyle merely by restricting calories and supplementing.
That would indeed be a major misconception, albeit not for the reason you suggest. Supplements have nothing, per se, to do with CR.
OTOH:
YOU MUST have a limited amount of body fat of below 5%.
Until you reach 5%, you are not CRON because you restrict calories ... you are merely on your way. Think of yourself as an apprentice.
Are there any studies that back this up in some way, or at least lend support to your premise?
I do not know of any directly on point. However, it is common sense my friend.
In fact, there ARE such studies, of course (it being an obvious, commonsensical thing to think -- and therefore, to
actually investigate scientifically, rather than making assumptions based on nothing more reliable than intuition, let alone dogmatically expounding with no evidence whatsoever and in self-proclaimed ignorance). They in fact find that there is almost no relationship between body fat and CR benefits.
You would know this if you had bothered to dig into the scientific literature, or even by just
looking on the Imminst boards, as Kismet just noted. (That post links
here, which is a useful update to an
earlier post; unfortunately, that link is broken, so it's missing the review of the most impressive studies showing that
CR life extension is not caused by low body fat).
The most remarkable counterexample to your intuition is the ob/ob (now Lep
ob) mouse, which (as noted in that post) stores most of its energy as fat, building up little lean mass at all. Compared to its much leaner parent strain,it lives exactly as long on CR
when fed the same number of Calories, even though it maintains a grossly obese body composition even when its Calories are shaved way down (1) (sorry if this comes out hard to read):
Group ***|| Food Intake (g) || Body Wt || % Fat || Av'g LS || Max LS
---------------------------------------------------------------------------
AL B6**********3*************30******22*****171****976
CR B6**********2*************20******13*****810***1287
AL ob/ob*******4.2************59******67*****526****776
CR ob/ob********2************28*******48****823****1307
At the last CR Society Conference (which, I was disappointed to see, none of you guys attended! Kick yourselves smartly!), Jim Nelson of the Nathan shock Aging Center at the University of Texas Health Sciences University presented yet more data on this, from a recent study on comparisons of strain responses to CR; Steven Spindler also has unpublished data coming out (he tells me) soon.
Please learn to subject your intuitions to the test of actual, empirical investigation. At the very least, please learn not to make an ass of yourself by making dogmatic assertions without it.
-Michael
1: Harrison DE, Archer JR, Astle CM.
Effects of food restriction on aging: separation of food intake and adiposity. Proc Natl Acad Sci U S A. 1984 Mar;81(6):1835-8.
PMID: 6608731; UI: 84170397
Edited by Michael, 12 December 2009 - 05:07 PM.