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Tim FerrissTim Ferriss

Rhonda Patrick, Ph.D. — Protocols for Fasting, Lowering Dementia Risk, Reversing Heart Aging, & More

Rhonda Patrick, Ph.D. 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. cc: @FoundMyFitness @FoundMyFitnessClips Sponsors: 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: https://MonarchMoney.com/Tim (50% off your first year at monarchmoney.com with code TIM) Helix Sleep premium mattresses: https://HelixSleep.com/Tim (27% off all mattress orders) [00:00:00] Aging parents and other topics on the table. [00:05:55] How a common multivitamin helps reverse cognitive and memory aging. [00:07:18] The importance of supplementation. [00:08:28] Effectively supplementing with omega-3 fish oil [00:12:18] The CoQ10 and omega-3 protocol that has helped Rhonda's father manage Parkinson's symptoms for nearly a decade. [00:14:54] Sulforaphane: a potent NRF2 activator with an unexpected benefit for Rhonda's mother's tremors. [00:21:12] How Rhonda convinced her mom to start CrossFit [00:22:30] The earlier the intervention, the better the outcomes. [00:27:00] Intermittent fasting vs. extended fasting and my own results. [00:39:28] Does fasting destroy muscle mass? Debunking the catabolism fear. [00:51:17] "Dirty" fasting: what really happens to autophagy and metabolic benefits when you add a splash of cream or MCT oil to your coffee? [00:54:37] VO2 max: the one metric that may predict lifespan more accurately than anything else, and how we work to improve it. [01:06:24] How a two-year exercise program reversed heart aging by 20 years in previously sedentary, middle-aged adults. [01:10:40] Lactate isn't the enemy: how vigorous exercise creates a superfuel that protects and grows the brain. [01:14:57] The optimal sauna protocol (temperature and frequency) for slashing dementia risk by 66%. [01:23:46] If you're human, you'll find a use for curcumin. [01:25:13] Creatine for cognition: moving beyond the gym with a powerful, science-backed tool for focus and combating sleep deprivation. [01:37:31] Still vitamin D deficient despite taking supplements? Here's the critical cofactor you're probably missing. [01:48:51] Shocking sources of microplastics in our daily lives, including chewing gum and teabags. [01:59:10] The uncomfortable truth about "moderate" alcohol consumption, cancer risk, and why the "sick quitter" hypothesis makes most older studies unreliable. [02:12:14] The ups and downs of ketamine and psilocybin on cognition and longevity. [02:19:24] Parting thoughts and where to find more from Rhonda. Tim Ferriss is one of Fast Company’s “Most Innovative Business People” and an early-stage tech investor/advisor in Uber, Facebook, Twitter, Shopify, Duolingo, Alibaba, and 50+ other companies. He is also the author of five #1 New York Times and Wall Street Journal bestsellers: The 4-Hour Workweek, The 4-Hour Body, The 4-Hour Chef, Tools of Titans and Tribe of Mentors. The Observer and other media have named him “the Oprah of audio” due to the influence of his podcast, The Tim Ferriss Show, which has exceeded 900 million downloads and been selected for “Best of Apple Podcasts” three years running. Sign up for "5-Bullet Friday" (Tim's free weekly email newsletter): https://go.tim.blog/5-bullet-friday-yt/ Follow the Tim Ferriss Podcast: https://tim.blog/podcast/ Visit the Tim Ferriss Blog: https://tim.blog/ Follow Tim Ferriss on Twitter: https://twitter.com/tferriss/ Follow Tim Ferriss on Instagram: https://www.instagram.com/timferriss/ Like Tim Ferriss on Facebook: https://www.facebook.com/TimFerriss/

Tim FerrisshostRhonda Patrickguest
Jul 25, 20252h 22mWatch on YouTube ↗

At a glance

WHAT IT’S REALLY ABOUT

Rhonda Patrick’s practical protocols for brain, heart, fasting, and longevity

  1. The conversation starts with practical interventions Tim Ferriss and Rhonda Patrick use with aging parents, emphasizing compliance-friendly “low-hanging fruit” like multivitamins, vitamin D, omega-3s, and targeted add-ons such as ubiquinol and sulforaphane.
  2. Rhonda Patrick discusses intermittent fasting versus extended fasting, describing distinct goals (weight loss, metabolic markers, ketosis signaling, and autophagy) and why adding calories—especially amino acids—can reduce autophagy-related signals.
  3. They explore exercise as a high-leverage intervention for longevity, focusing on VO2 max, vigorous interval training, and a two-year training study described as reversing structural heart aging by about 20 years in previously sedentary middle-aged adults.
  4. Rhonda Patrick explains why vigorous exercise may be uniquely brain-protective via lactate’s role as both a fuel and signaling molecule that can increase brain-derived neurotrophic factor and other neuromodulators.
  5. They cover additional risk and mitigation themes—sauna/hot baths and dementia associations, creatine for cognition (including higher doses used in studies), vitamin D measurement and magnesium as a cofactor, widespread microplastic exposure sources, and alcohol’s risk profile and study-design pitfalls like the “sick quitter” effect.

IDEAS WORTH REMEMBERING

5 ideas

Rhonda Patrick highlights newer RCT evidence that a basic multivitamin can measurably support cognition in older adults.

She cites three randomized controlled trials in adults 65+ showing that two years of a standard multivitamin (Centrum Silver) improved performance on cognitive tests, with effects described as reducing global cognitive aging by about two years and episodic memory aging by about 4.8 years.

ApoE4 status may change how omega-3 should be dosed and delivered for brain effects.

She explains that people with ApoE4 may get less DHA into the brain and may need higher-dose omega-3 and/or omega-3 in phospholipid form (e.g., from eating fish; she also mentions salmon roe and notes krill oil is less concentrated).

Her “high-impact, high-compliance” supplement stack for her father centers on multivitamin + DHA-heavy omega-3 + ubiquinol.

For her father (Parkinson’s diagnosis in 2017), she prioritizes a multivitamin, high-DHA omega-3 at about two grams/day, and ubiquinol (reduced CoQ10), and notes his Parkinson’s progression has been very slow (largely one-hand tremor for almost a decade), though she emphasizes you can’t be sure of causality.

Sulforaphane is presented as a hormetic stressor that can boost glutathione and may have noticeable neurologic effects for some people.

She describes sulforaphane (from cruciferous vegetables, especially broccoli sprouts) as a potent NRF2 activator that upregulates stress-response genes, including pathways that raise glutathione; she also reports her mother noticed tremor improvement within roughly 1–2 weeks after starting a sulforaphane supplement.

Fasting benefits depend on which endpoint you care about—calories, metabolic markers, ketosis signaling, or autophagy.

She frames intermittent fasting as delivering multiple goals: weight loss often via ~200 fewer calories/day, metabolic improvements even when calories are matched, ketosis-related signaling (beta-hydroxybutyrate), and activation of repair processes such as autophagy; she also notes we don’t yet know the minimal fasting “dose” for autophagy in humans, though signals appear around 24–48 hours.

WORDS WORTH SAVING

5 quotes

Taking a multivitamin for two years had pretty enormous effects on cognitive aging.

— Rhonda Patrick

Being sedentary is a disease, and we need to think about it as a disease, and we should be trying to train to improve our VO2 max.

— Rhonda Patrick

Essentially, at the end of those two years, the structure of their heart, so the stiffness of it and the, you know, shrinking of it, was reversed.

— Rhonda Patrick

I'm hooked on the 10 grams a day. If it's placebo, I don't care. It works, right?

— Rhonda Patrick

Alcohol is... it's a toxin. It's also a lot of fun.

— Rhonda Patrick

Aging parents and compliance-driven interventionsMultivitamins and cognitive aging trialsVitamin D status, measurement, and magnesium cofactorOmega-3 dosing, DHA brain delivery, and ApoE4CoQ10/ubiquinol and Parkinson’s progression contextSulforaphane, NRF2, and glutathioneIntermittent vs prolonged fasting, ketosis, and autophagy tradeoffs (including “dirty fasting”)

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