“…The title and abstracts of these papers were screened and 34 trials met the eligibility criteria. Furthermore, 16 papers were excluded for the following reasons: without any control group (Choudhary et al , 2018; Dhawan and Jain, 2004; Balliett and Burke, 2013) or placebo (Ho et al , 2016; Zarvandi et al , 2017; Jabbari et al , 2005), garlic was mixed with other product (Higashikawa et al , 2012; Singh et al , 2011; Zeb et al , 2012; Lopez et al , 2013; Sukandar, 2013; Arent et al , 2018), conducted on pregnant women (Faroughi et al , 2018) and children (Smyth et al , 2010), the full text was not available although an email was sent to the authors (Osgard et al , 2000; Shaikh et al , 2019). Finally, 18 articles included in the systematic review and meta-analysis (Aslani et al , 2016; Isaacsohn et al , 1998; Jain et al , 1993; Kumar et al , 2013; Mahdavi-Roshan et al , 2013; Salimzadeh et al , 2018; Soleimani et al , 2016; soori et al , 2016; Szulinska et al , 2018; Hamidnezhad et al , 2017; Seo et al , 2012; Sharifi et al , 2010; Macan et al , 2006; Xu et al , 2018; Gardner et al , 2001; Atkin et al , 2016; Gomez-Arbelaez et al , 2013; Mahdavi-Roshan et al , 2016a).…”