At least one studio made a conscious effort to keep its leading man squeaky clean. Before Cavill began his grueling five-month preproduction training for Steel , Warner Bros. requested a list of exactly what the training team might ask Cavill to use. Twight gladly complied, given that he believes radical body recomposition can be done naturally when it is guided by experienced trainers and driven by discipline and commitment. For Cavill, Twight recommended only Udo's Oil (a blend of essential fatty acids) and magnesium to aid sleep, the time when growth hormone occurs naturally.
According to Hunter's 2004 testimony before a federal grand jury, Jones's use of banned drugs began well before Sydney.  Hunter told the investigators that Jones first obtained EPO (Erythropoietin) from Graham, who Hunter said had a Mexican connection for the drug. Later, Hunter said, Graham met Conte, who began providing the coach with BALCO "nutritional supplements", which were actually an experimental class of "designer" steroids said to be undetectable by any drug screening procedures available at the time. Graham then distributed the performance enhancers to Jones and other Sprint Capitol athletes. Still later, Hunter told federal agents, Jones began receiving drugs directly from Conte.