So Rogan's either conning his fans (since he's financially involved with the ridiculously named Alpha Brain) or he's incredibly naive (which is possible given his personality). I don't listen/watch his podcast since it seems pretty awful but I hear he is constantly pushing the product. Read the first post of this thread.

 

Joe Rogan Alpha Brain

 

Here's another link that discusses "deceptive marketing practice by the supplement industry" and uses Alpha Brain as an example of that.

 

Science-Based Medicine - Alpha Brain

I've heard his podcast a couple of times. Nothing too memorable, but it passed the time. I think his sponsorship of the Fleshlight is more telling of his mindset than anything else. He's way better as an interviewee after hearing him on Marc Maron's show.