期刊
Obesity
卷 24, 期 11, 页码 2261-2268出版社
WILEY-BLACKWELL
DOI: 10.1002/oby.21584
关键词
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资金
- Agriculture and Agri-Food Canada
- Canola Council of Canada
- Dow Agrosciences
- Flax Council of Canada
- National Center for Research Resources [UL1 RR033184]
- National Center for Advancing Translational Sciences [UL1 TR000127]
- NIH [2T32DK007703]
Objective: To determine the effect of diets low in saturated fatty acids and high in monounsaturated fatty acids (MUFA) or polyunsaturated fatty acids on body composition in participants at risk for metabolic syndrome (MetS). Methods: This study was a randomized, crossover, controlled feeding study. Participants (n=101, ages 49.5+/-1.2, BMI 29.4+/-0.4 kg/m(2)) were randomized to five isocaloric diets containing treatment oils: Canola, CanolaOleic, CanolaDHA, Corn/Safflower, and Flax/Safflower. Each diet period was 4 weeks followed by a 2- to 4-week washout period. Results: Canola (3.1 kg, P = 0.026) and CanolaOleic oil diets (3.09 kg, P = 0.03) reduced android fat mass compared with the Flax/Saff oil diet (3.2 kg), particularly in men. The decrease in abdominal fat mass was correlated with the reduction in blood pressure after the Canola (systolic blood pressure: r = 0.26, P = 0.062; diastolic blood pressure: r = 0.38, P = 0.0049) and CanolaOleic oil diets (systolic blood pressure: r = 0.39 P = 0.004; diastolic blood pressure: r = 0.45, P = 0.0006). The decrease in abdominal fat mass also was associated with a reduction in triglyceride levels after the CanolaOleic oil diet (r = 0.42, P = 0.002). Conclusions: Diets high in MUFA (compared with PUFA) reduced central obesity with an accompanying improvement in MetS risk factors. Diets high in MUFA may be beneficial for treating and perhaps preventing MetS.
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