203. Barbara O’Neill: On Longevity, Gut Microbiome, Immune System, and Anti-Aging Basics

The Ultimate Human with Gary Brecka

Gary Brecka

Health & Fitness

4.8 • 2.5K Ratings

🗓️ 23 September 2025

⏱️ 85 minutes

🔗️ Recording | iTunes | RSS

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Summary

Join my FREE 3-Day Water Fast Challenge - October 15th. It's the exact protocol I use with pro athletes and Fortune 500 CEOs to flush inflammation and kickstart autophagy. Sign up here! http://bit.ly/4nTILPt Your immune system is either your greatest biological asset or your weakest link, and my conversation with Barbara O’Neill just revealed the secrets to strengthening it, by simply going back to the basics. The beauty of Barbara’s approach is its simplicity and accessibility. These aren’t expensive biohacks, but rather, foundational biological principles that honor how your immune system actually functions. Join the Ultimate Human VIP community for Gary Brecka's proven wellness protocols!: https://bit.ly/4ai0Xwg Get Barbara O’Neill’s books here: http://bit.ly/3IcxjPH Connect with Barbara O’Neill Website: http://bit.ly/3Io9PXS YouTube: http://bit.ly/48ti53j Instagram: http://bit.ly/3Kf1LZV TikTok: http://bit.ly/4nHXZ9N Facebook: http://bit.ly/4mp8bTT Thank you to our partners H2TABS: “ULTIMATE10” FOR 10% OFF: https://bit.ly/4hMNdgg BODYHEALTH: “ULTIMATE20” FOR 20% OFF: http://bit.ly/4e5IjsV BAJA GOLD: "ULTIMATE10" FOR 10% OFF: https://bit.ly/3WSBqUa EIGHT SLEEP: SAVE $350 ON THE POD 4 ULTRA WITH CODE “GARY”: https://bit.ly/3WkLd6E COLD LIFE: THE ULTIMATE HUMAN PLUNGE: https://bit.ly/4eULUKp WHOOP: JOIN AND GET 1 FREE MONTH!: https://bit.ly/3VQ0nzW MASA CHIPS: 20% OFF FIRST ORDER: https://bit.ly/40LVY4y VANDY: “ULTIMATE20” FOR 20% OFF: https://bit.ly/49Qr7WE AION: “ULTIMATE10” FOR 10% OFF: https://bit.ly/4h6KHAD A-GAME: “ULTIMATE15” FOR 15% OFF: http://bit.ly/4kek1ij PEPTUAL: “TUH10” FOR 10% OFF: https://bit.ly/4mKxgcn CARAWAY: “ULTIMATE” FOR 10% OFF: https://bit.ly/3Q1VmkC HEALF: 10% OFF YOUR ORDER: https://bit.ly/41HJg6S BIOPTIMIZERS: “ULTIMATE” FOR 15% OFF: https://bit.ly/4inFfd7 RHO NUTRITION: “ULTIMATE15” FOR 15% OFF: https://bit.ly/44fFza0 GOPUFF: GET YOUR FAVORITE SNACK!: https://bit.ly/4obIFDC GENETIC TEST: ⁠https://bit.ly/3Yg1Uk9 Watch the “Ultimate Human Podcast” every Tuesday & Thursday at 9AM EST: YouTube: https://bit.ly/3RPQYX8 Podcasts: https://bit.ly/3RQftU0 Connect with Gary Brecka Instagram: https://bit.ly/3RPpnFs TikTok: https://bit.ly/4coJ8fo X: https://bit.ly/3Opc8tf Facebook: https://bit.ly/464VA1H LinkedIn: https://bit.ly/4hH7Ri2 Website: https://bit.ly/4eLDbdU Merch: https://bit.ly/4aBpOM1 Newsletter: https://bit.ly/47ejrws Ask Gary: https://bit.ly/3PEAJuG Timestamps 00:00 Intro of Show 02:06 Going Back to the Basics 06:58 Good Sources of Nutrition for Infants 08:50 Possible Causes of Autism 11:35 Impact of Sanitation & Vaccination in Children’s Health 16:10 Good Absorption vs. Malabsorption 19:15 Immune System is the Ability of the Body to Heal Itself 21:45 The Theory of Immunofatigue 24:21 How to Strengthen the Immune System 33:03 Recommended Nutrition for a Stronger Immune System 39:00 Strengthening the Immune System Starts with the Gut 44:46 Vaccinations = Childhood Poisoning Program 53:37 Healing Powers of Nature and Normalcy 57:27 Sleep is the Human Superpower 59:35 The Rise of Infertility 01:02:33 Impact of the Oral Microbiome 01:08:50 Debunking the Myths on LDL & Cholesterol 01:15:31 Taking Good Care of the Brain 01:23:21 What does it mean to you to be an “Ultimate Human?” The Ultimate Human with Gary Brecka Podcast is for general informational purposes only and does not constitute the practice of medicine, nursing or other professional health care services, including the giving of medical advice, and no doctor/patient relationship is formed. The use of information on this podcast or materials linked from this podcast is at the user’s own risk. The Content of this podcast is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Users should not disregard or delay in obtaining medical advice for any medical condition they may have and should seek the assistance of their health care professionals for any such conditions. Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0	Did you know that they used to have in the medical journals the graphs? And if you look at the
0:05.1	original graphs, the infectious diseases were three quarters sometimes totally wiped out,
0:11.1	and then the vaccine was introduced. I have a hard time believing that we need 79 vaccines
0:17.1	before you're 18 years old in order to just exist in the world. That's a total denial
0:24.2	our body can heal itself because it can. I agree and I acknowledge that people have the symptoms,
0:30.6	but we have seen people heal from all the autoimmune diseases that you might mention to me.
0:36.7	Some of the characteristics of the immune system that people might not know about.
0:40.1	I mean, I think we're very familiar with the fact that it defends us.
0:43.0	Remember that there's an intermediary between the food that you eat and you.
0:47.3	We don't eat to feed ourselves.
0:49.1	We eat to feed our gut bacteria.
0:50.8	And they eat to feed us.
0:52.0	Well, it is estimated that 70% of our immune system is established by our gut flora.
0:58.0	So what destroys our gut flora is the antibiotics.
1:02.0	We know that the immune system is hypervigilant.
1:05.0	And so how do we strengthen our immune system?
1:09.0	That's a good question. Very good question.
1:11.4	It needs us to be...
1:12.6	Hey, guys.
1:25.7	Welcome back to the Ultimate Human podcast.
1:27.2	I'm your host, Human Biologist, Gary Brecker, where we go down the road of every... Hey guys, welcome back to the Ultimate Human Podcast.
1:32.0	I'm your host, human biologist, Gary Brecker, where we go down the road of everything,
	...

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