Too many professional sports clubs are using unqualified people to oversee the use of supplements, according to Australasian college of sports physicians president Dr Michael Jamieson.
Supplements have a role to play in professional sport, Jamieson says, but clubs must ensure doctors remain in control of administering them.
His comments follow the explosive Australian Crime Commission report which revealed wide use of banned substances in Australian professional sport and also instances where it was supported by coaching and support staff.
"Too often sporting organisations outsource the provision of supplements to individuals within the organisation who have inadequate expertise," Jamieson told AAP on Friday.
"I think that's where these problems are arising."
Jamieson noted there were significant health risks associated with some supplements, and having an unqualified person in charge of their use could be dangerous for athletes.
Making doctors responsible for supplement regimes at sporting clubs was also likely to ensure anti-doping codes weren't breached, Jamieson said.
Jamieson said substances were banned if they "confer a statistically significant advantage" to an athlete or there is serious concerns about the health effects of their use or administration.
Doctors have a solid grasp of whether drugs and other supplements fall into these categories, he added.
"(If) doctors are responsible for the administration of drugs to athletes then the likelihood is that those WADA codes aren't going to be breached."
"Doctors have an ethical code around drug administration. They understand the balance between benefit and side effect."
Having oversight from doctors will also make it difficult to cover up doping, Dr Jamieson said.