Effect of caloric restriction in non-obese humans on physiological, psychological and behavioral outcomes
Language: 
English
Abstract: 

The focus of this review is on current research involving long-term calorie restriction (CR) and the resulting changes observed in physiological and behavioral outcomes in humans. Special emphasis will be given to the first completed clinical studies which are currently investigating the effects of controlled, high-quality energy-restricted diets on both biomarkers of longevity and on the development of chronic diseases related to age in humans. Prolonged CR has been shown to extend both the median and maximal lifespans in a variety of lower species such as yeast, worms, fish, rats, and mice. Mechanisms of this CR-mediated lifespan extension are not fully elucidated, but possibly involve significant alterations in energy metabolism, oxidative damage, insulin sensitivity, and functional changes in both the neuroendocrine and sympathetic nervous systems. In this brief report, we review some of the major physiological, psychological and behavioral changes after 6 months of CR in overweight otherwise healthy volunteers. Ongoing studies of prolonged CR in humans are now making it possible to analyze changes in "biomarkers of longevity" to unravel some of the mechanisms of its anti-aging phenomenon. With the incremental expansion of research endeavors in the area of energy or calorie restriction, data on the effects of CR in animal models and human subjects are becoming more accessible. Detailed analyses from controlled human trials involving long-term CR will allow investigators to link observed alterations from body composition down to changes in molecular pathways and gene expression, with their possible effects on the biomarkers of aging.

Author(s): 
Redman, Leanne M.
Martin, Corby K.
Williamson, Donald A.
Ravussin, Eric
Item Type: 
Journal Article
Publication Title: 
Physiology & Behavior
Journal Abbreviation: 
Physiol. Behav.
Publication Date: 
8/6/2008
Publication Year: 
2008
Pages: 
643-648
Volume: 
94
Issue: 
5
ISSN: 
0031-9384
DOI: 
10.1016/j.physbeh.2008.04.017
Library Catalog: 
NCBI Published Medical (?)
Extra: 
PMID: 18502453 PMCID: PMC2535933

Turabian/Chicago Citation

Leanne M. Redman, Corby K. Martin, Donald A. Williamson and Eric Ravussin. 8/6/2008. "Effect of caloric restriction in non-obese humans on physiological, psychological and behavioral outcomes." Physiology & Behavior 94: 5: 643-648. 10.1016/j.physbeh.2008.04.017.

Wikipedia Citation

<ref> {{Cite journal | doi = 10.1016/j.physbeh.2008.04.017 | issn = 0031-9384 | volume = 94 | pages = 643-648 | last = Redman | first = Leanne M. | coauthors = Martin, Corby K., Williamson, Donald A., Ravussin, Eric | title = Effect of caloric restriction in non-obese humans on physiological, psychological and behavioral outcomes | journal = Physiology & Behavior | date = 8/6/2008 | pmid = | pmc = }} </ref>