Rhonda Patrick, Ph.D. (@foundmyfitness) is a biomedical scientist and the founder of FoundMyFitness, a platform dedicated to delivering rigorous, evidence-based insights on improving healthspan and mitigating age-related diseases.
Sponsors:
Helix Sleep premium mattresses: https://HelixSleep.com/Tim (27% off all mattress orders)
Momentous high-quality creatine and other supplements: https://livemomentous.com/tim (code TIM for up to 35% off)
David Protein Bars 28g of protein, 150 calories, and 0g of sugar: https://davidprotein.com/tim (Buy 4 cartons, get the 5th free.)
Monarch Money track, budget, plan, and do more with your money: MonarchMoney.com/Tim (50% off your first year at monarchmoney.com with code TIM)
Timestamps:
[00:00:00] Start.
[00:04:54] Dealing with aging parents and other topics on the table.
[00:10:43] How a common multivitamin helps reverse cognitive and memory aging.
[00:12:04] The importance of supplementation — especially as we age.
[00:13:10] Effectively supplementing with omega-3 fish oil to counter APOE4 and Alzheimer’s risks.
[00:16:50] The CoQ10 and omega-3 protocol that has helped Rhonda’s father manage Parkinson’s symptoms for nearly a decade.
[00:19:28] Sulforaphane: a potent NRF2 activator with an unexpected benefit for Rhonda’s mother’s tremors.
[00:25:34] How Rhonda convinced her mom to start CrossFit and the power of community-based, senior-focused fitness.
[00:26:52] The earlier the intervention, the better the outcomes.
[00:32:25] Intermittent fasting vs. extended fasting and my own results.
[00:44:31] Does fasting destroy muscle mass? Debunking the catabolism fear and understanding the crucial role of the re-feeding phase.
[00:57:24] “Dirty” fasting: what really happens to autophagy and metabolic benefits when you add a splash of cream or MCT oil to your coffee?
[01:00:44] VO2 max: the one metric that may predict lifespan more accurately than anything else, and how we work to improve it.
[01:12:07] How a two-year exercise program reversed heart aging by 20 years in previously sedentary, middle-aged adults.
[01:16:18] Lactate isn’t the enemy: how vigorous exercise creates a superfuel that protects and grows the brain.
[01:20:30] The optimal sauna protocol (temperature and frequency) for slashing dementia risk by 66%.
[01:29:17] If you’re human, you’ll find a use for curcumin.
[01:30:43] Creatine for cognition: moving beyond the gym with a powerful, science-backed tool for focus and combating sleep deprivation.
[01:42:41] Still vitamin D deficient despite taking supplements? Here’s the critical cofactor you’re probably missing.
[01:53:52] Shocking sources of microplastics in our daily lives, including chewing gum and teabags.
[02:04:10] The uncomfortable truth about “moderate” alcohol consumption, cancer risk, and why the “sick quitter” hypothesis makes most older studies unreliable.
[02:17:03] The ups and downs of ketamine and psilocybin on cognition and longevity.
[02:24:19] Parting thoughts and where to find more from Rhonda.
*
Show notes for this episode:https://tim.blog/2025/07/24/dr-rhonda-patrick/
For show notes and past guests on The Tim Ferriss Show, please visit tim.blog/podcast.
For deals from sponsors of The Tim Ferriss Show, please visit tim.blog/podcast-sponsors
Sign up for Tim’s email newsletter (5-Bullet Friday) at tim.blog/friday.
For transcripts of episodes, go to tim.blog/transcripts.
Discover Tim’s books: tim.blog/books.
Follow Tim:
Twitter: twitter.com/tferriss
Instagram: instagram.com/timferriss
YouTube: youtube.com/timferriss
Facebook: facebook.com/timferriss
LinkedIn: linkedin.com/in/timferriss
See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

#809: The 4-Hour Workweek Tools That Still Work — The Art of Refusal and The Low-Information Diet
This time around, we have a bit of a different format, featuring the book that started it all for me, The 4-Hour Workweek. Readers and listeners often ask me what I would change or update,…
#808: Stephen West — From High School Dropout to Hit Podcast (Plus: Life Lessons from Ralph Waldo Emerson, Friedrich Nietzsche, Simone Weil, and More)
Stephen West is a father, husband, and host of the Philosophize This! podcast. Sponsors: Gusto simple and easy payroll, HR, and benefits platform used by 400,000+ businesses: https://gusto.com/tim (three months free) Momentous high-quality supplements: https://livemomentous.com/tim (code TIM for…
#807: In Case You Missed It: March 2025 Recap of “The Tim Ferriss Show”
This is a special inbetweenisode, which serves as a recap of the episodes from last month. It features a short clip from each conversation in one place so you can easily jump around to get a…
#806: How Rich Barton Built Expedia and Zillow from $0 to $35B — Audacious Goals, Provocation Marketing, Scrabble for Naming, and Powerful Daily Rituals
Rich Barton is the co-founder and co-executive chairman of Zillow, a company transforming how people buy, sell, rent, and finance homes. Before Zillow, Rich founded Expedia within Microsoft in 1994 and successfully spun the company…
#805: Philip Goff — Exploring Consciousness and Non-Ordinary Religion, Galileo’s Error, Panpsychism, Heretical Ideas, and Therapeutic Belief
Philip Goff is a professor of philosophy at Durham University. His main research focus is consciousness, but he is interested in many questions about the nature of reality. He is most known for defending panpsychism,…
#804: Robert Rodriguez, The Wizard of Cinema Returns — The “Fear-Forward” Way of Life, How to Overcome Self-Doubt, Learning to Love Limitations, and Counter-Intuitive Parenting That Works
Robert Rodriguez is a film director, screenwriter, producer, cinematographer, editor, and composer. Rodriguez has written, produced, directed, and edited a series of successful films including El Mariachi, Desperado, From Dusk Till Dawn, the Spy Kids…
#803: Craig Mod Returns — Epic Walks in Japan, The Art of Slowness, Digital Detox, Publishing “Impossible” Books, and Choosing Beauty Over Scale
Craig Mod Returns! Craig is a writer, photographer, and walker living in Tokyo and Kamakura, Japan. He is the author of Things Become Other Things and Kissa by Kissa. He also writes the newsletters Roden and Ridgeline and has contributed to The New York…
#802: Craig Mod — The Real Japan, Cheap Apartments in Tokyo, Productive Side Quests, Creative Retreats, Buying Future Freedom, and Being Possessed by Spirits
Craig Mod is a writer, photographer, and walker living in Tokyo and Kamakura, Japan. He is the author of Things Become Other Things and Kissa by Kissa. He also writes the newsletters Roden and Ridgeline…
#801: In Case You Missed It: February 2025 Recap of “The Tim Ferriss Show”
This is a special inbetweenisode, which serves as a recap of the episodes from last month. It features a short clip from each conversation in one place so you can easily jump around to get a…
#800: Ev Williams — The Art of Pivoting (e.g., Odeo to Twitter), Strategic Quitting, The Dangers of Premature Scaling, Must-Read Books, and More
Ev Williams is the co-founder of Mozi, a new social network that helps you connect in person with the people you care about. Over the past 25 years, Ev has co-founded several companies that have…