*** In mice.
There's no proof that it works in humans, and furthermore if it did we'd ultimately be talking about a pretty trivial extension. I think raccoon is talking about non-trivial extensions with reliable improvements in quality of life.
The preponderance of the evidence is against you.
Science. 2009 Jul 10;325(5937):201-4.
Caloric restriction delays disease onset and mortality in rhesus monkeys.
Colman RJ, Anderson RM, Johnson SC, Kastman EK, Kosmatka KJ, Beasley TM, Allison DB, Cruzen C, Simmons HA, Kemnitz JW, Weindruch R.
Wisconsin National Primate Research Center, University of Wisconsin, Madison, WI 53715, USA.
rcolman@primate.wisc.edu
Caloric restriction (CR), without malnutrition, delays aging and extends life span in diverse species; however, its effect on resistance to illness and mortality in primates has not been clearly established. We report findings of a 20-year longitudinal adult-onset CR study in rhesus monkeys aimed at filling this critical gap in aging research. In a population of rhesus macaques maintained at the Wisconsin National Primate Research Center, moderate CR lowered the incidence of aging-related deaths. At the time point reported, 50% of control fed animals survived as compared with 80% of the CR animals. Furthermore, CR delayed the onset of age-associated pathologies. Specifically, CR reduced the incidence of diabetes, cancer, cardiovascular disease, and brain atrophy. These data demonstrate that CR slows aging in a primate species.
PMID: 19590001 [PubMed - indexed for MEDLINE]
Also:
John O. Holloszya, Luigi Fontanaa, Caloric restriction in humans. Experimental Gerontology Volume 42, Issue 8, August 2007, Pages 709-712
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Qin W, et al. Calorie restriction attenuates Alzheimer's disease type brain amyloidosis in Squirrel monkeys (Saimiri sciureus). J Alzheimers Dis. 2006 Dec;10(4):417-22.
Al-Regaiey KA, et al. Effects of caloric restriction and growth hormone resistance on insulin-related intermediates in the skeletal muscle. J Gerontol A Biol Sci Med Sci. 2007 Jan;62(1):18-26.
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McKiernan SH, et al. Adult-onset calorie restriction delays the accumulation of mitochondrial enzyme abnormalities in aging rat kidney tubular epithelial cells. Am J Physiol Renal Physiol. 2007 Jun;292(6):F1751-60. Epub 2007 Mar 6.
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www.pnas.org/content/101/17/6659.long
http://patient-research.elsevier.com/patientresearch/displayAbs?key=S0735109705025775
And thousands more.