The Truth About Microplastics - Dr Rhonda Patrick

Dr Rhonda Patrick is a biomedical scientist, researcher and a fitness podcaster. Every day, your body fends off harmful pathogens with ease. But what happens when environmental toxins like microplastics start to build up? What are they, and how can you protect yourself from their effects? Expect to learn why microplastics are so prevalent in our everyday lives, how to detoxify yourself from microplastics, which everyday items expose us most to microplastics, where microplastics are stored in your body, the impact on your health being bombarded by microplastics, why your clothes might be one of the biggest offenders of toxic plastic exposure, the best exercises and routines that help you remove microplastics from your system, how to offset your exposure to toxins in your food and environments, and much more… - 00:00 What You Need to Know About Microplastics 05:27 What Levels of Microplastics Are We Exposed To? 10:31 Where Do Plastics Go in the Body? 14:39 Different Types of Plastics 24:14 Sex Differences in Susceptibility 28:10 Most Common Places We’re Exposed to Microplastics 38:30 Are We Absorbing Microplastics From Our Clothes? 42:24 Is it Possible to Have Plastic-Free Food? 50:18 Best Tactics for Avoiding Microplastics 59:22 Is it Possible to Test & Remove Microplastics? 1:10:04 Advice to People Impacted By the LA Fires 1:15:54 Impact of the GRAS System on American Food 1:25:02 The Danger of Trans Fats 1:28:54 Nitrites & Nitrates 1:31:21 Should We Be Concerned About Added Sugar? 1:37:07 The Main Issues With Ultra-Processed Food 1:43:52 Do Sugar & Ultra-Processed Foods Cause Cancer? 1:47:21 How Sugar & Ultra-Processed Foods Impact Brain & Energy 1:53:57 How to Rebuild a Leaky Gut 1:56:57 Mitigating the Risks of Ultra-Processed Foods 2:08:03 What’s Next for Rhonda 2:11:40 Where to Find Rhonda - Get the best bloodwork analysis in America at https://functionhealth.com/modernwisdom Get $350 off the Pod 4 Ultra at https://eightsleep.com/modernwisdom (use code MODERNWISDOM) Get a 20% discount on the best supplements from Momentous at https://livemomentous.com/modernwisdom Get a Free Sample Pack of all LMNT Flavours with your first purchase at https://drinklmnt.com/modernwisdom - Get Rhonda’s free guide—“How to Train According to the Experts”—at https://howtotrainguide.com/ Subscribe to Rhonda’s YouTube channel - https://www.youtube.com/@UCWF8SqJVNlx-ctXbLswcTcA - Get access to every episode 10 hours before YouTube by subscribing for free on Spotify - https://spoti.fi/2LSimPn or Apple Podcasts - https://apple.co/2MNqIgw Get my free Reading List of 100 life-changing books here - https://chriswillx.com/books/ Try my productivity energy drink Neutonic here - https://neutonic.com/modernwisdom - Get in touch in the comments below or head to... Instagram: https://www.instagram.com/chriswillx Twitter: https://www.twitter.com/chriswillx Email: https://chriswillx.com/contact/

Chris WilliamsonhostDr Rhonda Patrickguest

Feb 24, 20252h 13mWatch on YouTube ↗

WHAT IT’S REALLY ABOUT

Microplastics, Plastics, and Processed Foods: Hidden Threats to Health Revealed

Dr. Rhonda Patrick explains how microplastics and associated chemicals (like BPA, phthalates, PFAS) have become ubiquitous in water, food, air, clothing, and consumer products, and how they accumulate in organs—especially the brain and reproductive tissues—with emerging links to dementia, hormonal disruption, and fertility problems.
She distinguishes microplastics from plastic-associated endocrine disruptors, outlining how these chemicals mimic or block hormones, lower testosterone, impair sperm quality, disrupt sexual development in boys, and increase risks for neurodevelopmental issues such as ADHD and autism.
Patrick then broadens the lens to ultra‑processed foods and added sugar, detailing how they drive overeating, obesity, systemic inflammation, cognitive decline, and cardiovascular and cancer risk—independently of weight in many cases.
Throughout, she outlines practical 80/20 strategies: reducing plastic and heat exposure, optimizing water and air quality, increasing fiber and specific foods (oats, crucifers), strategic supplementation (e.g., sulforaphane, omega‑3s, creatine), and using exercise as a major buffer against many of these harms.

IDEAS WORTH REMEMBERING

5 ideas

You cannot fully avoid microplastics, but you can dramatically reduce exposure.

Microplastics are now in water, soil, air, food, clothing fibers, tires, and more. Major reductions come from using reverse osmosis water filtration, minimizing bottled water and canned liquids, avoiding heating food or drinks in plastic, and using safer cookware and utensils.

Heat plus plastic is one of the most dangerous combinations.

Heating plastics (microwaving containers, hot coffee in plastic‑lined cups, canned soups filled hot, microwave popcorn bags, hot liquids in plastic/black containers) accelerates breakdown into smaller particles and increases leaching of endocrine‑disrupting chemicals like BPA and PFAS.

Plastics and their chemicals disproportionately affect the brain and reproduction.

Microplastics accumulate 10–20 times more in the brain than other organs and are found in heart, liver, lungs, testes, placenta, and semen. BPA, BPS, phthalates, and PFAS disrupt estrogen and androgen signaling, lower testosterone, damage sperm morphology and motility, and alter male sexual development (e.g., AGD, undescended testes, hypospadias).

Dietary fiber—especially fermentable types—helps block and expel microplastics.

Fermentable fiber from fruits, vegetables, oats, and resistant starch forms a viscous gel that encapsulates micro- and nanoplastics, reducing absorption, while non‑fermentable fiber speeds their transit and excretion in feces; higher daily fiber intake is a key defense.

Certain foods can help clear ‘forever chemicals’ and other toxins.

Beta‑glucans in oats (and mushrooms) increase excretion of PFAS in animals via effects on bile and lipid handling, and sulforaphane from broccoli sprouts/crucifers activates Nrf2‑dependent detox pathways that increase elimination of benzene and similar compounds, and plausibly BPA, in humans.

WORDS WORTH SAVING

5 quotes

It's impossible to avoid [microplastics]. They're in our water, our soil, our air, and our food. The goal is not perfection, it's reduction.

— Dr. Rhonda Patrick

Microplastics seem to accumulate in the brain ten to twenty times more than other organs, and people with dementia had ten times more microplastics in their brains postmortem.

— Dr. Rhonda Patrick

One study found microplastics in 100% of human and dog semen samples, and this was associated with abnormal sperm structure and reduced motility.

— Dr. Rhonda Patrick

Trans fats were in our food supply for over a hundred years before we finally took them out, despite strong evidence they stiffen our arteries and drive heart disease.

— Dr. Rhonda Patrick

Exercise is the forgiver of most of our sins. If it's part of your daily hygiene, you can mitigate a lot of the damage from plastics and ultra‑processed foods.

— Dr. Rhonda Patrick

What microplastics and nanoplastics are, where they come from, and how they enter the bodyHealth impacts of microplastics: organ accumulation, brain effects, and reproductive damageEndocrine‑disrupting chemicals in plastics: BPA, BPS, phthalates, PFAS, receipts, and personal care productsPractical strategies to reduce plastic exposure in water, food, cookware, packaging, clothing, and airUltra‑processed foods, added sugar, and their effects on appetite, obesity, hormones, and cancer riskImpacts of diet and inflammation on brain health, mood, cognition, and gut permeabilityProtective strategies: dietary fiber, oats and beta‑glucans, sulforaphane/broccoli sprouts, water filtration, HEPA filters, and exercise (including HIIT and VO₂max training)

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