#1 Joe Rogan

Joe Rogan is by far the biggest endorser of Onnit’s Alpha Brain. This isn’t surprising considering that Joe Rogan is a co-founder of the product.
Joe Rogan himself had explicitly stated that the product is legit and it helped him “form his sentences better”. Joe stated that during the time when he worked as a commentator for the UFC, it was Alpha Brain which he thinks helped him perform his best for the job. Joe had mentioned that working as a commentator for the UFC was “the most memory intensive” job he had to and the job was accomplished with the help of Alpha Brain [Onnit I always take alpha brain].
In his other podcasts and mentions of Alpha Brain, Joe Rogan has discussed how Alpha Brain contains various ingredients, including compounds like Alpha-GPC, Huperzine-A, and Bacopa monnieri, which are believed to have potential cognitive-enhancing effects. He has shared personal anecdotes of feeling increased focus, improved memory, and better mental alertness after taking Alpha Brain.

Much like Joe Rogan, Jocko is also a podcaster who heavily endorsed Onnit’s Alpha Brain. Jocko Willink had multiple mentions about the nootropic product in many of his socials and also on his podcasts.
For those who don’t know, Jocko Willink is a retired navy seal, a podcast host (started around 2015), and is also a Brazilian jiu-jitsu practitioner.
The testimonies from Jocko are pretty much the same as what Joe Rogan had mentioned about Alpha Brain on his podcast and social media channels. Jocko mentioned about the potential benefits of cognitive enhancement and mental clarity that the supplement offers.

Joey Diaz is another celebrity who recommends Alpha Brain. This was back around 2016 – 2017. Joey Diaz is a comedian, actor, and a podcaster and he has over 935,000 subscribers on Youtube.
Joey himself had included a podcast video where he largely talks about and endorses the Alpha Brain Nootropic Supplement, it can be seen on this Youtube Video [Joey Diaz on his Alpha Brain Side Effects]. Additionally, again in 2017, the ONNIT Official Youtube Channel had Joey Diaz make a short video featuring Joey Diaz recommending the Alpha Brain product and saying that he starts his early mornings by taking 2 of Alpha Brains, he further states that Alpha Brain is “the backbone of Onnit”.
#4 Duncan Keith

Duncan Keith is a Canadian professional ice hockey player. Back around 2014, Duncan partnered with ONNIT as a figure/ambassador for their brand.
According to one article from the ONNIT Official Blogging Site, during the mid-second round of the 2014 Stanley Cup Playoffs, Duncan remarked, “Hockey is not only physically but also mentally demanding. Onnit’s Alpha BRAIN® has helped me to focus and and have razor sharp clarity and alertness on the ice.”
#5 Jason Ellis

Jason Ellis is an Australian Radio Personality who was one of the earliest celebrity to partner up with ONNIT and endorse their Alpha Brain Nootropic Supplement.
In a 3-minute Testimonial Video back in 2013 from ONNIT, we can see Jason Ellis talk ONNIT products, specifically Alpha Brain, which was the flagship of ONNIT at that time. Additionally in the video, Ellis also shows and talks about Hemp FORCE, Shroom TECH Sport supplements.
Jason Ellis mentions the effect of Alpha Brain saying “It does stuff, it makes me think- maybe too much, I think maybe I’ve been an easier person to deal with….”.