Document Detail


Effect of a 3-day high-fat feeding period on carbohydrate balance and ad libitum energy intake in humans.
MedLine Citation:
PMID:  20195283     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: A reduction in glycogen after the switch to an isoenergetic high-fat diet (HFD) might promote a compensatory increase in food intake to reestablish carbohydrate balance. We assessed the effect of an isoenergetic switch from a 49%-carbohydrate to 50%-fat diet on nutrient balance and ad libitum food intake. We hypothesized that carbohydrate balance would be inversely related to ad libitum energy intake. METHODS: In 47 men and 11 women (22.6+/-0.4 years; 26.1+/-0.5 kg m(-2)), fuel balance was measured in a respiration chamber over 4 days. During the first day, an isoenergetic, high-carbohydrate diet was provided followed by a 3-day isoenergetic, HFD. At the end of this period and after 16 h of fasting, three options of foods (cookies, fruit salad and turkey sandwich) were offered ad libitum for 4 h. The relationships between post-chamber ad libitum intake and macronutrient oxidation and balance measured day-to-day and over the 4-day respiration chamber stay were studied. RESULTS: After switching to a HFD, 24-h respiratory quotient decreased from 0.87+/-0.02 to 0.83+/-0.02 (P<0.0001) resulting in a 4-day cumulative carbohydrate, fat and protein balances of -183+/-368, 342+/-480 and 65+/-267 kcal, respectively. Cumulative energy balance (224+/-362 kcal per 4 days) did not influence ad libitum energy intake. However, we detected that 4-day carbohydrate balance was a positive and independent predictor of post-chamber ad libitum energy intake (R (2)=0.10; P=0.01), whereas no significant influence of fat and protein balances was found. CONCLUSION: In response to an isoenergetic change from a high-carbohydrate to HFD, higher carbohydrate balance related to increased energy intake.
Authors:
J E Galgani; L de Jonge; M M Most; G A Bray; S R Smith
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2010-03-02
Journal Detail:
Title:  International journal of obesity (2005)     Volume:  34     ISSN:  1476-5497     ISO Abbreviation:  Int J Obes (Lond)     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-05-10     Completed Date:  2010-11-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101256108     Medline TA:  Int J Obes (Lond)     Country:  England    
Other Details:
Languages:  eng     Pagination:  886-91     Citation Subset:  IM    
Affiliation:
Pennington Biomedical Research Center, Baton Rouge, LA 70808, USA.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Dietary Carbohydrates / administration & dosage,  metabolism*
Dietary Fats / administration & dosage,  metabolism*
Energy Intake*
Energy Metabolism*
Feeding Behavior
Female
Food Preferences
Glycogen / metabolism
Humans
Male
Obesity / metabolism*
Oxidation-Reduction
Oxygen Consumption*
Time Factors
Young Adult
Grant Support
ID/Acronym/Agency:
1 P30 DK072476-01/DK/NIDDK NIH HHS
Chemical
Reg. No./Substance:
0/Dietary Carbohydrates; 0/Dietary Fats; 9005-79-2/Glycogen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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