“…The prevalence of SS use among elite athletes and recreational exercisers has been studied by different authors and has greatly expanded throughout the years [ 2 , 4 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. The range of SS users that has been reported in previous investigations is very wide [ 1 , 2 , 3 , 4 , 5 , 7 , 8 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ] and goes from 35 to 95% [ 5 , 6 , 7 , 8 , 17 , 18 ]. According to recent literature, this high prevalence of SS use may become dangerous for health [ 17 , 18 , 19 ] due to the misuse, lack of reliable resources of information, and the scarce guidance of health specialists [ 21 , 22 , 23 , 24 ,…”