Cover art for podcast The Human Upgrade with Dave Asprey—formerly Bulletproof Radio

The Human Upgrade with Dave Asprey—formerly Bulletproof Radio

937 EpisodesProduced by Dave AspreyWebsite

For a decade, Dave Asprey, “the father of biohacking,” elevated what you knew about the capabilities of your mind and body across a thousand episodes of Bulletproof Radio. Now, he’s evolving it even further in his plan to upgrade humanity. You’re invited to expand your knowledge, explore your own pe… read more


Boost Your Oral, Dental & Throat Health with Probiotics – Prof. John Tagg with Dave Asprey : 808

In this episode of Bulletproof Radio, we’re talking about bugs. The good kinds!

Emeritus professor and microbiologist John Tagg has been researching bacteria since the mid 1970s and has been specifically looking for a probiotic solution to Group A Strep. He’s done this work primarily at the Department of Microbiology and Immunology at the University of Otago in Dunedin, New Zealand. He’s responsible for the isolation and characterization of the first streptococcal bacteriocin and wrote the first major review of the bacteriocins of gram-positive bacteria.

Prof. Tagg’s pioneering research led to the discovery of two probiotic bacterial strains. These strains of 'friendly' bacteria are effective in crowding out bad bacteria in the mouth. Both are strains of S. salivarius, which are naturally found in the oral cavity of healthy humans.

  • One is the world’s first oral probiotic strain from the mouth for the mouth.
  • The other probiotic strain specifically targets dental and gum health.

Most people don’t have very much of either of these beneficial strains, so a daily supplement is a great way to boost the good bacteria in the mouth to help with throat health, teeth and gum health and bad breath. Prof. Tagg partners with BLIS Technologies to create supplements for throat, dental and oral health.

"The real importance is that the mouth is the portal of entry of most microbes, good or bad, for the human body," says Prof. Tagg. "We have our skin microflora, of course. But I believe that by focusing attention on having a healthy and protective oral microbiota, you cannot only sort of interfere, you can delay or divert infections or disease of the oral cavity, then it can have a flow on effect also to the gut."

You’re going to learn a lot of new information about good bacteria and probiotics from an expert who’s dedicated decades of time, authored more than 230 research publications on the topic and isolated over 2,000 bacterial strains. 

Enjoy! And get more resources at Dave.Asprey/podcasts

Got a comment, idea or question for the podcast? Submit via this form.


Get BLIS PROBIOTICS exclusively on Amazon USA and Amazon Canada. Learn about all the BLIS products at Then simply hit the “Buy on Amazon” button. Use code DAVE2021 at checkout to get a 10% discount.


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