He's going to have to say because information is accessible that establishes it as a fact.

So he proves it's not snake oil, but rather user ignorance, as I originally stated.

He also demonstrates that the supplement market is self-regulating. Information cab be produced by market actors and even normal people and is available at time of purchase. People are able to review it.

What isn't available is peer review research regarding patented drugs. Most patented drugs are merely tested by the companies slinging them and their crony scientists. Thus, the patented drug market is not self-regulating.