Why is knowledge of performance-enhancing drug testing important in dietary supplement testing?

In order to navigate the complex grey areas between drugs in sport and dietary supplements it is essential to have in-depth knowledge of how the prohibited sport list and associated thresholds are interpreted and applied. Often new supplement ingredients can have a potential to be banned in sport; some of these ingredients may appear to be legitimate and require deep experience to resolve. There are also naturally present hormones like IGF-1 that are found in whey protein, colostrum, and even deer antler. Evaluating whether that natural presence is a concern or not takes not just integrity but experience.