Is Sean Sherk innocent? He's appealing the ruling. This thread on Sherdog got me wondering. A little googling led me to this ESPN article on Royce Gracie:
According to a University of Aberdeen study, nandrolone detection can result in a false positive if the subject has engaged in a cardio-intensive regimen coupled with excessive protein and creatine intake; it's theoretically possible that eating steroid-tainted beef could also influence scores.
But that's all I can find. A search of the University of Aberdeen site didn't lead me very far.
Anyone smarter than me able to say more one way or the other?