Document Detail

Dairy food consumption and meal-induced cortisol response interacted to influence weight loss in overweight women undergoing a 12-week, meal-controlled, weight loss intervention.
MedLine Citation:
PMID:  23190756     Owner:  NLM     Status:  MEDLINE    
Dairy food enhances weight loss in animal models, possibly by modifying the metabolic effects of cortisol. This study determined in overweight women (ages 20.0-45.9 y; n = 51) whether including dairy food in an energy-restricted diet affects cortisol concentrations and whether differences in provoked cortisol explain the magnitude of weight loss. Women received either an adequate amount of dairy food (AD), the equivalent of ≥711 mL/d milk, or a low amount of dairy food (LD), the equivalent to ≤238 mL/d milk, in a 12-wk, energy-restricted dietary intervention. Participants were tested in a 12-h laboratory visit, which included 2 standard meals and a dinner buffet that was consumed ad libitum. Salivary cortisol was measured from waking to bedtime. Energy restriction increased (P ≤ 0.04) the minimum and decreased (P ≤ 0.02) the diurnal amplitude in the salivary cortisol concentration from baseline to postintervention. Energy restriction enhanced the dinner meal-stimulated salivary cortisol response (DMR) (P ≤ 0.02) but only in the LD group. Compared with the LD treatment, the AD treatment induced (P ≤ 0.04) greater reductions in body weight and fat, but only in women characterized as having a baseline DMR (responders) (n = 26); weight and fat lost in the AD and LD groups were similar in nonresponders (n = 25). Overall, energy restriction dampened diurnal salivary cortisol fluctuations [symptomatic of hypothalamic-pituitary-adrenal (HPA) axis dysfunction] and enhanced dinner meal-stimulated salivary cortisol concentrations. The AD treatment prevented the latter. Furthermore, certain phenotypic markers of HPA axis function may help to expose the weight-reducing effects of consuming dairy food.
Megan G Witbracht; Marta Van Loan; Sean H Adams; Nancy L Keim; Kevin D Laugero
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2012-11-28
Journal Detail:
Title:  The Journal of nutrition     Volume:  143     ISSN:  1541-6100     ISO Abbreviation:  J. Nutr.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2012-12-24     Completed Date:  2013-02-25     Revised Date:  2014-01-09    
Medline Journal Info:
Nlm Unique ID:  0404243     Medline TA:  J Nutr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  46-52     Citation Subset:  IM    
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MeSH Terms
Biological Markers / metabolism
Body Mass Index
Circadian Rhythm
Dairy Products*
Diet, Reducing* / methods
Hydrocortisone / metabolism,  secretion*
Hypothalamo-Hypophyseal System / physiopathology*
Middle Aged
Obesity / diet therapy,  metabolism,  physiopathology
Overweight / diet therapy*,  metabolism,  physiopathology
Pituitary-Adrenal System / physiopathology*
Saliva / metabolism*
Weight Loss
Young Adult
Grant Support
Reg. No./Substance:
0/Biological Markers; WI4X0X7BPJ/Hydrocortisone

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