Yeah, so without trust this research would take a long time.

First of all, you'd need to know what to learn, which is pretty hard.

In this case that would be what? At least basic and some advanced understanding of human anatomy, metabolic processes, neurotransmitters maybe, some pharmacology, nutrition, that's too much for most people.

It would be easier to just learn how to tell honest people from scammers/liars/propagandists and then trust some of them.