Document Detail

Effects of different dietary fat types on postprandial appetite and energy expenditure.
MedLine Citation:
PMID:  14694208     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: Observational studies suggest that monounsaturated (MUFA) and trans fatty acids (TRANS) are more fattening than polyunsaturated fatty acids (PUFA). Therefore, the aim of this study was to investigate the acute effect of intake of PUFA, MUFA, or TRANS on appetite and energy expenditure (EE). RESEARCH METHODS AND PROCEDURES: Three test meals were randomly given in a cross-over design to 19 overweight (BMI: 26.8 +/- 0.4 kg/m2), young (25.2 +/- 0.7 years) men. The fat-rich breakfasts (0.8 g fat/kg body weight, 60% energy from fat) varied only in the source of C:18-fat. EE was measured continuously in a respiration chamber, and appetite sensations were rated by visual analog scales before and every 30 minutes, for 5 hours, after the meal. After 5 hours, an ad libitum meal was served, and energy intake was registered. Sensory evaluations of all meals were given using visual analog scales. Data were analyzed by two-way ANOVA. RESULTS: There were no differences in basal or postprandial values of appetite ratings and EE, in subsequent ad libitum energy intake, or in the sensory evaluation of the test meals among the 3 test days. DISCUSSION: Giving acutely large amounts of MUFA, PUFA, or TRANS did not impose any differences in appetite and EE in overweight humans. However, studies with extended protocols and other subject groups are warranted to investigate the long-term effect of dietary fat quality on the regulation of energy balance and body weight.
Anne Flint; Berit Helt; Anne Raben; Søren Toubro; Arne Astrup
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Obesity research     Volume:  11     ISSN:  1071-7323     ISO Abbreviation:  Obes. Res.     Publication Date:  2003 Dec 
Date Detail:
Created Date:  2003-12-24     Completed Date:  2004-04-16     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9305691     Medline TA:  Obes Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1449-55     Citation Subset:  IM    
Department of Human Nutrition, Center for Advanced Food Studies, The Royal Veterinary and Agricultrual University, Frederiksberg C, Denmark.
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MeSH Terms
Appetite / drug effects*,  physiology
Basal Metabolism / drug effects,  physiology
Cross-Over Studies
Dietary Fats / metabolism,  pharmacology*
Drinking / drug effects
Energy Intake / drug effects
Energy Metabolism / drug effects*,  physiology
Fatty Acids, Monounsaturated / metabolism,  pharmacology*
Fatty Acids, Unsaturated / metabolism,  pharmacology*
Postprandial Period / drug effects*,  physiology
Trans Fatty Acids / metabolism,  pharmacology*
Reg. No./Substance:
0/Dietary Fats; 0/Fatty Acids, Monounsaturated; 0/Fatty Acids, Unsaturated; 0/Trans Fatty Acids

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