“…All studies (Abbas et al, 2017; Alt et al, 2017; Asif et al, 2015; Banerjee et al, 2021; Bommelaer et al, 2020; Brinkhaus et al, 2005; Bundy et al, 2004; Hanai et al, 2006; Kedia et al, 2017; Khonche et al, 2016; Koosirirat et al, 2010; Kositchaiwat et al, 1993; Lang et al, 2015; Lauche et al, 2016; Lopresti et al, 2021; Masoodi et al, 2018; Panahi et al, 2021; Portincasa et al, 2016; Sadeghi et al, 2019; Sawangroj et al, 2019; Singla et al, 2014; Sirijarugul, 2007; Sugimoto et al, 2020; Thamlikitkul et al, 1989; Van Dau et al, 1998; Yongwatana et al, 2022) were published between 1989 and 2021 and were conducted in Asia ( n = 13) (Asif et al, 2015; Banerjee et al, 2021; Hanai et al, 2006; Kedia et al, 2017; Koosirirat et al, 2010; Kositchaiwat et al, 1993; Sawangroj et al, 2019; Singla et al, 2014; Sirijarugul, 2007; Sugimoto et al, 2020; Thamlikitkul et al, 1989; Van Dau et al, 1998; Yongwatana et al, 2022), Europe ( n = 6) (Alt et al, 2017; Bommelaer et al, 2020; Brinkhaus et al, 2005; Bundy et al, 2004; Lauche et al, 2016; Portincasa et al, 2016), the Middle East ( n = 5) (Abbas et al, 2017; Khonche et al, 2016; Masoodi et al, 2018; Panahi et al, 2021; Sadeghi et al, 2019), and Australia ( n = 1) (Lopresti et al, 2021), with one multi‐country study (i.e., Israel, Hong Kong, and Cyprus) (Lang et al, 2015). Twenty‐five studies were randomized controlled trials (RCTs) (Abbas et al, 2017; Alt et al,…”