Table 1 The characteristics of studies included in this meta-analysis
Study identifier | Yr | Sample | Age(yr) | Intervention | Duration of intervention | BMI at study baseline (kg/m2) | Weight at study baseline (kg) | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
N(s) | N(c) | Age(s) | Age(c) | BMI(s) | BMI(c) | W(s) | W(c) | ||||
Mehri Jamilian, et al. [25] | 2018 | 30 | 30 | 26.0 ± 5.3 | 25.6 ± 3.8 | intake 8 × 109 CFU/day probiotic plus 200 μg/day selenium supplements or placebo | 12 weeks | 24.6 ± 3.3 | 24.0 ± 3.0 | 63.9 ± 9.3 | 63.4 ± 7.7 |
M. Razavi, et al. [26] | 2015 | 32 | 32 | 25.1 ± 4.5 | 25.4 ± 4.9 | Selenium group received 200 μg daily selenium tablet as selenium yeast and Placebo group received the placebo | 8 weeks | 24.7 ± 3.5 | 25.3 ± 4.3 | not available | not available |
Fatemeh Mohammad Hosseinzadeh, et al. [27] | 2016 | 26 | 27 | 29.23 ± 4.9 | 28.90 ± 6.1 | received 200 µg selenium as a selenium-enriched yeast tablet or placebo | 12 weeks | 27.4 ± 4.5 | 28.39 ± 3.7 | 70.2 ± 13.8 | 72.6 ± 13.7 |
Mehri Jamilian, et al. [28] | 2015 | 35 | 35 | 25.4 ± 5.1 | 25.7 ± 4.8 | receive 200 µg per day selenium supplements or placebo | 8 weeks | 25.0 ± 3.7 | 25.2 ± 4.1 | 66.7 ± 10.0 | 67.1 ± 11.0 |
Shahrzad Zadeh Modarres, et al. [29] | 2017 | 20 | 20 | 31.1 ± 4.7 | 31.4 ± 3.6 | receive either 200-μg selenium as selenium yeast-free other supplements such as zinc and copper or placebo per day | 8 weeks | 26.5 ± 4.1 | 27.3 ± 2.6 | 69.8 ± 10.7 | 70.7 ± 7.1 |
Zahra Heidar, et al. [30] | 2019 | 18 | 18 | 32.1 ± 4.7 | 32.6 ± 3.5 | intake either 200 μg/day selenium as selenium yeast (Nature Made, California, USA) or placebo (Barij Essence, Kashan, Iran) | 8 weeks | 27.2 ± 3.1 | 28.6 ± 2.5 | 74.5 ± 8.0 | 76.8 ± 6.5 |
Batool Hossein Rashidi, et al. [31] | 2019 | 34 | 32 | 29.4 ± 5.3 | 28.6 ± 5.5 | receive either a daily dose of 200 μg selenium as a selenium-enriched yeast tablet or placebo | 12 weeks | 28.3 ± 5.2 | 29.5 ± 5.4 | 71.9 ± 14.3 | 74.6 ± 14.2 |