Mostly True. He could have also laced it with prohormones or d-bol. (granted prohormones are much more difficult to get now).

But it doesn't matter if he was lacing it with Gulden's spicy brown mustard. You don't sneak shit into people's food. That is a major infraction against respect for another human being. Sneaking things in food should be punishable to a beating near death imo.