#422: Lessons from Centenarians: Immunity, Lifestyle, and Changing the Aging Game With Dr. Jeffrey Bland

Today, I’m joined by the legendary Dr. Jeffrey Bland, widely known as the “father of functional medicine” and a true pioneer in the science of longevity and immune resilience. In this conversation, Dr. Jeffrey Bland opens up about his decades-long journey questioning the conventional medicine model, the personal moments that shaped his mission, and how his passion for asking the right questions ultimately led him to reshape the future of healthcare.

We dive deep into why the true age of your immune system might be the single most important predictor of your healthspan, and how diet, lifestyle, and mindset are constantly retraining your body for better or worse. Dr. Jeffrey Bland walks us through the pitfalls of immune “boosting,” the overlooked wisdom of cyclical nutrition, and the groundbreaking science behind Himalayan Tartary Buckwheat—all while sharing practical frameworks anyone can use to start rejuvenating their biology today.

If you’re curious about the new science of immune age, how to personalize your health strategies, and what it means to build true resilience from the inside out, this episode is packed with insight, actionable tools, and a fresh perspective that will inspire you to take charge of your longevity journey.


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Learn more from Dr. Jeffrey Bland below:

Website: https://jeffreybland.com/

Tartary Buckwheat and other products: http://Bigboldhealth.com/NAT

Books or Research: https://jeffreybland.com/books/

LinkedIn: https://www.linkedin.com/in/jeffrey-bland-phd/

Instagram: https://www.instagram.com/drjeffreybland/?hl=en

What We Discuss:

Focus on immune system aging ... 00:00:00

Questioning conventional medicine and the roots of chronic disease ... 00:05:00

Functional medicine and influences like Linus Pauling ... 00:12:39

Dangers of oversimplification and the limits of biohacking ... 00:17:21

Evolving thinking on supplements and the power of cycling and personalization ... 00:19:37

Why immune resilience trumps immune boosting for longevity ... 00:25:21

Diet’s impact on immune cell turnover and long-term health ... 00:28:57

Autoimmunity, CHIP cells, inflammaging, and biological individuality ... 00:32:04

Microbiome, mitochondria, and immune-driven fatigue ... 01:00:07

The 4R gut and immune program as a starting point ... 01:06:26

Movement, lymphatics, and rejuvenation ... 01:08:35

Food as information, epigenetics, and practical recommendations ... 01:11:25

90-day immune system renewal and rapid-fire takeaways ... 01:31:40

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Some episodes of the Longevity With Nathalie Niddam podcast are supported by partners whose products or services may be discussed during the show. The host may receive compensation or earn a minor commission if you purchase through affiliate links at no extra cost to you. All opinions shared are those of the host and guests, based on personal experience and research, and do not necessarily represent the views of any sponsor. Sponsorships do not imply medical endorsement or approval by any healthcare provider featured on this podcast.