It is what happens when an FDA is weak.

Corporations wish to have no food regulation. They wish to sell tobacco, without meddlesome agency insisting it is bad for people. They wish to sell all sorts of bizarre 'food' that make its consumers horridly obese, without government regulating against it. They wish to produce acidy tasting wine and label it with a fancy Bordeaux name, to sell abroad.
Or, in this case, adding drugs that mask the addition of alcohol in power drinks.

Against all this, consumers need to protect themselves. Producers for their part, need to spend their energy lobbying against regulation, and need to try to influence public opinion to believe that public protection of what your child eats is not in the interest of the public.