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  • Title: Efficacy of synbiotic supplementation in obesity treatment: A systematic review and meta-analysis of clinical trials.
    Author: Hadi A, Alizadeh K, Hajianfar H, Mohammadi H, Miraghajani M.
    Journal: Crit Rev Food Sci Nutr; 2020; 60(4):584-596. PubMed ID: 30595036.
    Abstract:
    Several investigations have been reported the beneficial effects of synbiotic in participants with obesity, but these findings have been inconsistent. Therefore, we systematically reviewed available randomized clinical trials (RCTs) to elucidate the overall effects of synbiotic supplementation on anthropometric indices among participants with overweight or obesity. Five electronic databases including PubMed, Scopus, ISI Web of science, Cochrane Library and Google Scholar were searched up to October 2018. All RCTs using synbiotic supplements to treat obesity included in this systematic review and meta-analysis. Weighted mean difference (WMD) was pooled using a random-effects model. The present meta-analysis of 23 randomized trials indicated that supplementation with synbiotic can decrease body weight (WMD: -0.80 kg; 95% CI: -1.56 to -0.03, p = 0.04) and WC (WMD: -2.07 cm; 95% CI: -3.11 to -1.03, p < 0.001). In contrast, synbiotic did not have favorite effects on BMI (WMD: -0.12 kg/m2; 95% CI: -0.40 to 0.16, p = 0.39) and body fat (WMD: 0.02%; 95% CI: -1.27 to 1.87, p = 0.74) compared with the placebo group. Meta-regression analyses revealed that the dosage of probiotic did not have any effect on anthropometric measures. Based on our findings, modulation of gut microbiota composition through synbiotic supplementation might have modest effects on body weight and waist circumference. In this field, however, our knowledge is progressing.
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