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Iran J Public Health. 2012;41(4):9-18. Epub 2012 Apr 30.

Effects of Soy on Body Composition: A 12-Week Randomized Controlled Trial among Iranian Elderly Women with Metabolic Syndrome.

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  • 1Institute of Gerontology, University Putra Malaysia, Serdang, Selangor, Malaysia ; Dept. of Midwifery, Faculty of Medicine, Babol University of Medical Sciences, Iran.

Abstract

BACKGROUND:

To examine the effects of soy [in the form of textured soy protein (TSP) and soy-nut] on body composition in elderly women with metabolic syndrome (MetS).

METHODS:

A 12-week randomized clinical trial was conducted on 75 women between 60-70 years of age with MetS in rural health clinics around Babol, Iran in 2009. The participants were randomly assigned to one of the three groups of soy-nut (35g/d), TSP (35g/d) and control. Body fat, lean mass and anthropometric indicators were measured before and after intervention, too.

RESULTS:

Participants were classified as overweight and showing android fat distribution. After 12 weeks of intervention, both soy-nut and TSP groups showed an increase of non-significant in lean mass (0.9 and 0.7 kg), hip circumference (0.45 and 0.28 cm), triceps skinfold (TSF) thickness (0.87 and 0.67mm) and reduction in BMI (-0.15 and -0.33), waist circumference (-0.83 and -1.2) and body fat (-1.5% and -1.7%). Significant increase in the mean change of TSF and lean mass was observed in the users of soy-nut compared to the control group (P<0.01, P<0.05).

CONCLUSION:

12-week intervention of soy had a mild favorable effect on body composition in elderly women with MetS.

KEYWORDS:

Body composition; Metabolic syndrome; Older women; Soy

PMID:
23113160
PMCID:
PMC3481610
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