“…The articles included in this systematic review were published between 2006 and 2020. Among the 54 included studies, 44% were conducted in USA (n = 24) (Fomous et al, 2006;Goddard et al, 2007Goddard et al, , 2009Gleason et al, 2010;Hahn et al, 2010;Lemke et al, 2010;East et al, 2012;Kaphingst et al, 2012Kaphingst et al, , 2015Kaphingst et al, , 2016Kolor et al, 2012;Haga et al, 2013;Almeling, 2014;Borzekowski et al, 2014;Waters et al, 2014Waters et al, , 2016Waters et al, , 2017Abrams et al, 2015;Dodson et al, 2015;Graves et al, 2015;Schmidlen et al, 2016;Ahmed et al, 2017;Krakow et al, 2017;Horrow et al, 2019), 22% (n = 12) in the European Union (EU27) (Henneman et al, 2006(Henneman et al, , 2013Calsbeek et al, 2007;Morren et al, 2007;Mai et al, 2011;Smerecnik et al, 2011;Dijkstra et al, 2012;Vermeulen et al, 2014;Mavroidopoulou et al, 2015;McCormack et al, 2016;Fournier and Poulain, 2018;Rebitschek et al, 2019), 9% (n = 5) in Canada (Morin, 2009;Nielsen and El-Sohemy, 2012;Bombard et al, 2013;…”