This clearly shows that Tygart could not find any evidence of NOP with drug use that violates any laws.
Tygart will never release his findings as it would be be major embarrassment for him and his team of the time and money wasted in their investigation.
Now he will attempt to change the goal posts as to give credibility to his work.
The next extension of this then will be supplements , energy drinks, power bars etc.
BTW, The Daily Mail has been widely criticized for its unreliability as well as printing sensational and inaccurate scare stories of science and medical research and for copyright violations. (Wikipedia)
LetsRun may fall into this category.