"He didn't take any supplements to help his body," Salley said.
Gould said the autopsy showed Stringer was not taking any supplements and had no pre-existing conditions.
Powell maintained that he had "never knowingly or wilfully taken any supplements or substances that break any rules" and said that his team would launch an investigation.
After two years, the practitioner stopped visiting the island, and she has not taken any supplements since, she said, because she has not met any practitioners she trusts.
Officials were waiting for the results of tests to determine whether the athletes were using any supplements, like creatine, which can aggravate the condition.
At that meeting, as Van Commenee stresses now, "Dwain said he is not using any supplements or any sort or medication provided by Conte and there is no active involvement of, nor any meetings with, Korchemny.
Van Commenee stressed that at their meeting last Wednesday "Dwain said he is not using any supplements or any sort or medication provided by Conte and there is no active involvement of, nor any meetings with, Korchemny.
Antioxidants can also provide some protection but there has been controversy over the effectiveness of such food supplements, he said: "Personally, I think it is much better to eat lots of vegetables and fruit rather than taking any supplements".
The law would also require merchants to post signs warning of the side effects of ephedrine and to caution consumers to seek professional health advice before taking any supplements.
A spokeswoman for Powell told the Guardian that the athlete's camp had arranged a search warrant with police and contacted the World Anti-Doping Agency to ensure that any supplements taken away for testing would be done so without contamination.
Winslow added that he did not take any supplements that list ingredients banned by the league, "but the N.F.L. policy is very strict, so I am accountable for the results".
