title: The short-term effect of diacylglycerol oil consumption on total and dietary fat utilization in overweight women.
abstract: Diacylglycerol (DAG) is a natural component of edible oils with metabolic characteristics distinct from those of triacylglycerol (TAG). Consumption of DAG oil (containing > 80% DAG) induces greater fat oxidation than consumption of TAG oil. We compared the effects of 4 days of DAG oil consumption with those of TAG oil consumption on total and dietary fat oxidation over 24 h in overweight women using a whole-room respiratory chamber. Overweight (BMI (kg/m²) ≥ 25) females participated in this double-blind, crossover-controlled trial. The subjects consumed test diets containing either TAG or DAG oil as 15% of their total caloric intake (mean test oil intake was 33.0 ± 3.1 g/day) during each 4-day treatment. Fat oxidation and energy expenditure were measured in a respiratory chamber on the 4th day of each treatment. Compared with TAG oil, DAG oil consumption significantly increased total fat oxidation and dietary fat oxidation in overweight subjects. Total energy expenditure (TEE) and carbohydrate (CHO) oxidation did not significantly differ between DAG oil and TAG oil consumption in overweight subjects. Compared with TAG oil, DAG oil consumption enhanced total fat oxidation and dietary fat oxidation in overweight subjects. The enhanced fat metabolism in overweight subjects that consumed DAG oil partly explains the greater loss of body weight and body fat related to DAG oil consumption in weight-loss studies.
authors.affiliation: Health Care Food Research Laboratories, Kao Corporation, Tokyo, Japan. hibi.masanobu@kao.co.jp
authors.forename: Masanobu
authors.initials: M
authors.lastname: Hibi
authors.forename: Youko
authors.initials: Y
authors.lastname: Sugiura
authors.forename: Rika
authors.initials: R
authors.lastname: Yokoyama
authors.forename: Hideto
authors.initials: H
authors.lastname: Takase
authors.forename: Daisuke
authors.initials: D
authors.lastname: Shiiba
authors.forename: Shinichi
authors.initials: S
authors.lastname: Meguro
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Katashima
authors.forename: Akira
authors.initials: A
authors.lastname: Shimizu
authors.forename: Ichiro
authors.initials: I
authors.lastname: Tokimitsu
mesh_terms: D000328:Adult; D018592:Cross-Over Studies; D004041:Dietary Fats / Q000378:metabolism* / Q000494:pharmacology; D004075:Diglycerides / Q000494:pharmacology* / Q000627:therapeutic use; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D050356:Lipid Metabolism / Q000187:drug effects*; D015227:Lipid Peroxidation / Q000187:drug effects*; D008875:Middle Aged; D050177:Overweight / Q000178:diet therapy / Q000378:metabolism*; D014280:Triglycerides / Q000494:pharmacology*; D015431:Weight Loss / Q000502:physiology
chemical_list: D004041:Dietary Fats; D004075:Diglycerides; D014280:Triglycerides