1. Consumption of low-fat dairy foods for 6 months improves insulin resistance without adversely affecting lipids or bodyweight in healthy adults: a randomized free-living cross-over study.
- Author
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Rideout TC, Marinangeli CP, Martin H, Browne RW, and Rempel CB
- Subjects
- Adult, Aged, Blood Glucose analysis, Blood Pressure, Body Composition, Body Mass Index, Cross-Over Studies, Diet, Endpoint Determination, Energy Metabolism, Female, Humans, Insulin blood, Male, Middle Aged, Young Adult, Body Weight, Dairy Products analysis, Insulin Resistance, Lipids blood
- Abstract
Background: Given the highly debated role of dairy food consumption in modulating biomarkers of metabolic syndrome, this study was conducted to examine the influence of long-term (6 month) dairy consumption on metabolic parameters in healthy volunteers under free-living conditions without energy restriction., Methods: Twenty-three healthy subjects completed a randomized, crossover trial of 12 months. Participants consumed their habitual diets and were randomly assigned to one of two treatment groups: a high dairy supplemented group instructed to consume 4 servings of dairy per day (HD); or a low dairy supplemented group limited to no more than 2 servings of dairy per day (LD). Baseline, midpoint, and endpoint metabolic responses were examined., Results: Endpoint measurements of body weight and composition, energy expenditure, blood pressure, blood glucose, and blood lipid and lipoprotein responses did not differ (p > 0.05) between the LD and HD groups. HD consumption improved (p < 0.05) plasma insulin (-9%) and insulin resistance (-11%, p = 0.03) as estimated by HOMA-IR compared with the LD group., Conclusions: Study results suggest that high dairy consumption (4 servings/d) may improve insulin resistance without negatively impacting bodyweight or lipid status under free-living conditions., Trial Registration: Clinical Trials.gov: NCT01761955.
- Published
- 2013
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