He makes and sells Alpha Brain and other “supplements” through the company he co-founded Onnit. He’s very much in the snake oil business. https://www.onnit.com/pro-team/
Yeah but that has to be a side gig, not perfect but it's pretty common for humans to not be perfect. You have to believe he loves stand up comedy, loves the UFC, is blown away by the success of the podcast, and generally loves life. That doesn't leave time to get the Onnit topic quite right.