PMID- 21627975 OWN - NLM STAT- MEDLINE DCOM- 20120612 LR - 20120220 IS - 1873-507X (Electronic) IS - 0031-9384 (Linking) VI - 106 IP - 1 DP - 2012 Apr 12 TI - Obesity: the allostatic load of weight loss dieting. PG - 16-21 LID - 10.1016/j.physbeh.2011.05.020 [doi] AB - The obesity epidemic that is prevailing in most countries of the world is generally attributed to the increased amount of opportunities to be in positive energy balance in a context of modernity. This obviously refers not only to sedentariness and unhealthy eating that may dominate life habits of many individuals but also to unsuspected non-caloric factors which produce discrete allostatic changes in the body. In this paper, the focus is put on the impact of some of these factors with the preoccupation to document the allostatic burden of weight loss. Thus, beyond the fact that modernity favors opportunities to eat much and not to be active, the proposed conceptual integration leads to the conclusion that a modern lifestyle makes weight loss more difficult for obese individuals. In addition to the natural effects of weight loss favoring resistance to lose fat, a lifestyle promoting shorter sleep duration and more cognitive demand produces allostatic changes that may interfere with weight loss. The case of persistent organic pollutants (POPs) is also discussed as an example of the potential detrimental effects of a contaminated environment on metabolic processes involved in the control of energy expenditure. Taken together, these observations suggest that weight loss is more than ever a search for compromise between its metabolic benefits and its allostatic effects promoting body weight regain. CI - Copyright A(c) 2011 Elsevier Inc. All rights reserved. FAU - Tremblay, Angelo AU - Tremblay A AD - Division of Kinesiology, Faculty of Medicine, Laval University, Quebec City, QC, Canada, G1V 0A6. angelo.tremblay@kin.msp.ulaval.ca FAU - Chaput, Jean-Philippe AU - Chaput JP LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20110524 PL - United States TA - Physiol Behav JT - Physiology & behavior JID - 0151504 RN - 0 (Blood Glucose) RN - 0 (Environmental Pollutants) SB - IM MH - Allostasis/*physiology MH - Blood Glucose/metabolism MH - Body Weight/physiology MH - *Diet, Reducing/adverse effects MH - Eating/physiology MH - Environment MH - Environmental Pollutants/adverse effects MH - Humans MH - Hypoglycemia/etiology MH - Obesity/*diet therapy/*physiopathology MH - Respiratory Mechanics/physiology MH - Weight Loss/*physiology EDAT- 2011/06/02 06:00 MHDA- 2012/06/13 06:00 CRDT- 2011/06/02 06:00 PHST- 2011/03/30 00:00 [received] PHST- 2011/05/11 00:00 [revised] PHST- 2011/05/16 00:00 [accepted] PHST- 2011/06/02 06:00 [entrez] PHST- 2011/06/02 06:00 [pubmed] PHST- 2012/06/13 06:00 [medline] AID - S0031-9384(11)00270-8 [pii] AID - 10.1016/j.physbeh.2011.05.020 [doi] PST - ppublish SO - Physiol Behav. 2012 Apr 12;106(1):16-21. doi: 10.1016/j.physbeh.2011.05.020. Epub 2011 May 24.