Joe Rogan Experience #2476 - Shanna H. Swan
In a Nutshell
Shanna H. Swan warns that microplastics, phthalates, bisphenol A, and PFAS in plastics, cookware, clothing, and everyday products act as endocrine disruptors, causing plummeting testosterone, sperm counts, fertility (e.g., South Korea at 0.88 children/couple), and wildlife reproductive failures like smaller alligator penises. Simple interventions—Million Marker urine tests, switching to glass/steel/silicone storage (e.g., Zip Top, French press), avoiding nonstick/PFAS gear and fragrances—boosted testosterone to 1,200 ng/dL and sperm quality in studies of infertile couples. Watch "The Plastic Detox" on Netflix and visit millionmarker.com/unplasticyourlife.com for detox kits and steps to reduce exposure amid regulatory failures.
These notes were generated by AI and may contain inaccuracies.
Shanna H. Swan discusses her documentary on microplastics and endocrine disrupting chemicals, starting as a film on plastic. She met filmmaker Louie in New York five years ago.
Joe asked if toxins threaten human survival; Shanna affirmed. Joe then asked, "Why don't people know about this?" This prompted her Action Science Initiative for short, impactful, cheap interventions to alert the public, moving beyond academia.
"That's my story and I'm sticking to it."
Philip Franklin Lee, Michelin-star chef at Sushi by Scratch in Austin, experienced fatigue, low testosterone. Microplastics tested off the charts. Interventions: stopped drinking from plastic, eliminated plastic exposure. Testosterone rose to 1,200 without replacement therapy.
Microplastics are pieces of plastic carrying plasticizers (phthalates, bisphenol A). Microplastics newer to recognition; measuring in body (brain, testicles, placenta) harder than plasticizers, which are water-soluble, measured in urine. Microplastics cause double damage: chemical + physical (enter cells, inflammation like asbestos, silicosis).
Shanna gives Joe a Million Marker urine test kit (QR code: "Say hello to a healthier you") to measure bisphenols, phthalates, parabens (pesticides soon). Phase 1: baseline urine. Phase 2: swap kitchen items via QR code, retest to check changes.
Hot liquids from paper cups lined with bisphenols; coffee makers have plastic. Advice: use metal French press (tastes better).
Fellow (UCSF spinout, 200,000 men tested): recruited infertile couples (>12 months trying, idiopathic infertility, non-obese, non-smokers, no IVF, committed 3 months). Million Marker educated on products (face, laundry, counters), weekly check-ins. Semen collected at home (beginning, 6 weeks, 12 weeks; sperm cycle 70 days). Measured chemical levels, semen quality, lifestyle changes, pregnancies.
Documentary follows couples; moving, recommends watching.
Industrial coffee machines, filters, pods likely have bisphenol. Bruno in film quit pod addiction, had two babies.
Philip's case: radical improvement in sperm count, testosterone from eliminating plasticizers.
Women need testosterone for arousal, libido, muscle. Study (Future Families?): high phthalates in urine linked to lower sexual satisfaction, frequency.
Joe's wife's 50-year-old English friend on low-dose testosterone cream: "It makes me horny like a bloke."
Shocked how little discussed. Infertility common; IVF rising not just age/career delay—major factor: poisoning by plastics/endocrine disruptors in modern life.
Website: unplasticyourlife.com → actionhub → protect yourself for exposure reduction steps.
Nonstick cookware has PFAS (per- and polyfluoroalkyl substances), also in rain jackets, stain-resistant clothes (yoga tights, workout clothes, uniforms, school uniforms, flight attendant uniforms, sports uniforms, nylon?). Book: To Die For on textiles (dyes risky; little regulation; fast fashion, outdoor gear, face masks).
Chinese river (blue jean factories) turned blue from dye runoff into ocean. Affects animals/fish too.
1960: 5 children/couple average. South Korea: 0.88. East Asia (Japan, Southeast Asia) facing population collapse. Articles blame age/choice, ignore toxics.
Human fertility decline parallels wildlife species decline (~1% per year). Animals not delaying for careers.
"Beavers are trying to make dams. They don't have time for children."
Toxics in water, soil, food, plants. Phthalates in pesticides (increase absorption, like in hand cream).
Lou Gillette (Florida): alligators in pesticide-runoff lake had small penises, fewer eggs, declining species. Measured at night.
Perplexity confirmed documentation in wild alligators: males in heavily polluted lakes have on average smaller penises and other reproductive problems linked to hormone disrupting chemicals. 25% smaller penis sizes compared to males from a cleaner reference lake. Males have around 70% lower testosterone levels. Abnormal relationships between hormone levels and penis growth. Alligators from polluted lakes show abnormal sex hormone patterns, altered gonads, low hatching success, various birth defects, all consistent with exposure to endocrine disrupting contaminants (EDCs) such as DDT derivatives, dieldrin, PCBs, and related compounds.
"Every man in this room is half the man his grandfather was." -- Lou Guillette to Congress on testosterone levels, fertility.
Lou Guillette gave a talk to Congress. This is old work from the 1990s, yet little attention paid despite potential population collapse in America with reproduction numbers down and not at replacement level.
Normal population shape: fewer young people at the bottom to support the growing elderly population at the top, creating a huge societal problem.
Paper coffee cups have a plastic membrane; consuming chemicals that mess up health, vitality, energy levels, brain fog. People dismiss it despite long lines at Starbucks.
Lower fertility and sperm count studies (four or five studies) correlate with lower testosterone; men and women with lower fertility die younger, have less vitality and energy. Things affecting sperm, vitality, testosterone also signal broader health issues--a canary in the coal mine.
Discussions uncommon despite concerns over alcohol (young adults consume much less) and cigarette smoking (much less now). EDC consumption remains the same as 5 years ago.
FDA good at drug safety but regulatory agencies fail on chemicals in daily products. Europe does much better.
TSCA (Toxic Substances Control Act) should handle this, coming up for revision--people should pay attention and pressure government.
Not individuals' job to check denim dyes, clothing toxicity. Dyes for jeans and clothes exist that are not toxic; need experts on clothing chemicals.
Swan's program privately funded (government won't); great success in one intervention study, now doing another.
Industries rely on plastics and EDCs everywhere: leeching into food, clothes, products.
Glyphosate in 90+% of wheat, corn, agriculture; president passed executive order blocking elimination. Other countries feed populations without it.
RFK Jr. tried to eliminate glyphosate (toxic), but executive order due to industry pressure.
Popular fitness clothing brands leach chemicals screwing up health--paradox of modern life.
Swan studied glyphosate: influences anogenital distance (AGD) or taint size (two studies, some animal studies); many unforeseen consequences, none good.
Non-toxic solutions: machines zap weeds with laser beams over crops (no residual effect on food), minimizes pesticides. But farmers barely make money; monocrop agriculture on massive lands requires expensive machines covering huge acres.
Glyphosate used post-harvest on wheat as desiccator to dry quicker, prevent mold--explains bread and gut tape worm issues.
Consumer filters available to remove chemicals (e.g., reverse osmosis). Swan distills water at home: tap water boiled, steam condensed--removes everything including germs. Done every other day; fantastic water but removes minerals (reminearalize via water, supplements, or diet).
Distilled water safe if balanced diet; minerals mostly from food, not water. May slightly reduce intake long-term; add minerals for athletes, heavy sweaters, poor diets, children, illnesses (pinch of mineral salt, remineralization drops).
Fighters used distilled water for cutting weight (flushes quickly).
Cat Archie prefers distilled over tap (smells cleaner); tap container stinks when cleaned.
Fluoride in water linked to lower IQs, added under guise of teeth help; giant business selling to municipalities. Chlorination byproducts cause miscarriage.
Chlorine exposure in pools: safe in properly maintained pools (1-4 ppm free chlorine, pH 7.0-7.8), but irritates eyes, skin, airways. Chloramines (from sweat/urine) cause coughing, wheezing indoors.
Long-term heavy indoor exposure linked to respiratory symptoms, increased asthma risk.
Chlorine through intact skin: local effects only (dryness, itching); no systemic issues.
Chlorine disturbs skin flora temporarily (30-40% drop in microbiome diversity post-swim); recovers in hours to day from deeper layers. Daily swimming problematic.
Jiu-jitsu causes skin issues (ringworm, staph) from mats/scratches; antibacterial soaps strip healthy flora. Defense Soap (Guy Sako, tea tree oil, eucalyptus) kills bad bacteria, preserves healthy flora.
Experimental and field studies show that even short exposure to pool chlorine cuts measured microbiome diversity markedly, often around 30 to 40%, with composition shifting away from usual dominant groups right after a swim. After leaving the pool, resident species recolonize from deeper skin layers, hair follicles, and the environment, drifting back toward baseline over the next 24+ hours. With frequent repeated swimming, daily or high-volume training, skin stays in a chronically perturbed state with less time for full recovery.
Many switch to saltwater pools for this reason, though in very high-temperature areas, they may not effectively stop mold and junk. Saltwater pools are still technically chlorine pools; they generate chlorine on-site via electrolysis instead of pouring it in. Salt systems use ordinary salt (sodium chloride) at 2,700-3,400 ppm (one-tenth ocean salinity, close to body fluid levels). Water passes through an electrically charged salt cell, converting salt into active chlorine (hypochlorous acid, sodium hypochlorite) that sanitizes. Chlorine reconverts to chloride, repeating the cycle. Free chlorine remains at typical 1-4 ppm. Difference is the source (salt generator vs. liquid/tablet chlorine). Salt pools feel softer, with continuous low-level generation meaning fewer chloramines, less smell, and irritation if sized and maintained correctly. Still chlorine, so it disturbs microbiome.
Shanna shows products from her study kits: Zip Top silicone bags (food-grade silicone, free of phthalates and bisphenols), oven/freezer/microwave/dishwasher safe, reusable, thicker than Ziploc, various sizes for sandwiches/snacks/larger storage. Alternatives: glass, ceramic. Reusable reduces plastic waste. Dishwashing detergents/pods problematic (e.g., Tide Pods). Zip Top at ziptop.com.
Sous vide common for wild game (low fat, tenderizes via slow cooking at e.g. 135°F medium-rare for hours, then sear). Food vacuum-sealed in plastic bags, submerged in water bath. Concern: chemicals leach into food, similar to microwaving in plastic.
Perplexity search: Silicone-based sous vide bags generally safe, food-grade silicone inert, BPA-free, minimal migration (e.g., siloxanes) vs. plastics releasing microplastics, BPA. Regular plastic sous vide bags reasonably safe if food-grade, BPA/phthalate-free, rated for hot food (polyethylene/polypropylene, microwave-safe up to 190-195°F). Brands like Ziploc/Glad are polyethylene, BPA/dioxin-free, used below 176°F. Purpose-made vacuum/boilable pouches certified food-grade safest disposable. Utah Dept. of Health: limited direct studies, but FDA-compliant BPA/phthalate-free plastics lack estrogenic activity, safe for contact. One trout study found detectable BPA in cooked fish, but freshwater fish already contaminated.
Freshwater lakes in America ruined; eating fish exposes to mercury (methylmercury harms fetal/young child brain/nervous system), PFAS (widespread in tissue, risks: liver/kidney changes, cholesterol, immune response, pregnancy complications, cancers). Follow advisories, avoid for pregnant/children/frequent eaters. Anecdote: fishing tournament participant got heavy metal poisoning from eating catches. Faroese study (high fish/PFOS diet): lower antibody response to vaccines (MMR). Proposed intervention: PFAS-free school uniforms, measure booster antibody levels at age 6.
Lofamits (loofah mitts) for scrubbing sink/face/shower, better than chemical sponges (leach into food/plates). Bees Wrap: beeswax-treated paper, seals on itself (e.g., egg/tomato), rinses clean, reusable alternative to saran wrap/plastic (reduces waste like Pacific garbage patch). Sushi places wrap fish in plastic. Wowee W cloth bags for bread/cookies.
Resources: millionmarker.com (chemical glossary, QR card), unplasticyourlife.com (redirects to OPS Society action hub: non-plastic bags, steel cookware, wood/titanium cutting boards, steel water containers, never store/heat food in plastics, natural personal care in glass/tin).
Fragranced products raise phthalate body burden (study finding). Car air fresheners (e.g., pine tree), wall plugs, Mercedes Aroma System (e.g., Pacifica Mood: lemon/orange/spices) labeled miscellaneous dangerous goods/other dangerous substances (shipping/hazard warning?). Incense: smoke/chemicals irritate lungs, worsen asthma/allergies; long-term heavy use risks heart disease (hypertension, coronary artery disease, stroke), chronic ischemia (lack of blood flow, tissue damage), bronchitis, reduced lung function. Scented candles bad (phthalates retain scent in perfumes/makeup).
Metal straws risky if falling (e.g., through eyeball). Proposed n=1 experiment: interview on products used, recommend changes, track via plasma apheresis (removes chemicals from blood).
After plasmapheresis, felt exhausted the first day but lighter and with more energy the next day, even late at night. Would consider doing it again but just did it a few days ago. Suggest measuring chemicals in urine before and after; now might have low levels. Replaced plastic coffee machine 3-4 weeks ago with steel water boiler heating to 200°F, steel French press, and steel bean grinder. Process takes 15 minutes instead of 30 seconds but tastes way better, especially black coffee. French press is the best way to drink coffee. Avoids microplastics while already avoiding plastic/paper cups.
Felt refreshed post-procedure with less inflammation, though it's a 2-hour process looking odd with cords in both arms for blood filtration. Cost unknown but not cheap. Benefits include better recovery, sleep, and metrics on Oura ring or Whoop strap. Does many health optimization things, so hard to isolate effects, but overall body feels good. In science, change one thing at a time; this is an experiment of one in chaos, but it works.
Plasticizers from fossil fuel byproducts; opposition from plastic manufacturers and fossil fuel industry makes regulation extremely difficult. Reduces fossil fuel consumption, affecting oil markets and economy. Plastic production increasing astoundingly with no end in sight. Government unlikely to act; must be individual-level awareness and protective steps. Previous conversation led to lifestyle changes; hopes follow-up and movie increase awareness.
The Plastic Detox on Netflix. Six couples embark on plastic detox in homes, changing families forever. Explains microplastics/chemicals' health impacts: hormone disruption fueling fertility crisis, rising cancer, early heart attacks/strokes.
Trailer highlights: "Just a crap ton of chemicals." "Even the smallest levels of exposure can have profound effects." "Fertility worldwide is going down and it is tightly linked to chemicals that are commonly used in plastic." Couples trying to conceive 10+ years, 22 months, 2.5 years. Three-month intervention with six couples with unexplained infertility; semen quality cutoff for fertile is 40%, below is subfertile/infertile. Question: Can lowering plastic chemical exposure improve fertility? Chemicals also cause early heart attacks/strokes, autism, obesity. EU bans over 1,400 chemicals in personal care products vs. few in US. "To have a child is a fundamental human right."
Plastic doesn't have to come from petroleum-based materials; can use plant compounds like hemp plastic, potatoes—biodegradable. Plant-based plastics add cost of raising plants, but compares to oil extraction, refining, and polluting processes.
Specific high-exposure: sports/team uniforms (coating for durability), airline personnel uniforms, firefighters (waterproof). Anything waterproof, stain-proof, stain-resistant like Teflon pants—barrier fabrics. Nylon tracksuits terrible. Look for PFAS-free, BPA-free. Worst offenders:
- Synthetic plastic-heavy garments: fuzzy, coated, tight to skin, especially polyester fleece, recycled polyester, fast fashion, PFAS-coated water/stain-repellent outerwear/activewear.
- Polyester fleece jackets/blankets/loungewear: extremely high microfiber shedding (~110,000 fibers/garment/wash), pollutes environment/indoor dust/air.
- Recycled polyester fast fashion (leggings, tees, dresses, sportswear): sheds more/finer microfibers than virgin polyester; increased particle numbers/toxicity; cheap, heavy shedding, intense dyes/finishes.
- Hot pink tight synthetic sportswear/underwear: long contact with sweaty skin/mucous membranes; additives like antimony, phthalates, PFAS.
- Cheap synthetic performance/wrinkle-free/stain-resistant/anti-odor/heavy print garments: chemical finishes off-gas/leach.
Lower concern: undyed/lightly dyed natural fibers (cotton, linen, wool, hemp, silk) without stain-resistant/wrinkle-free finishes; simple weaves/knits shed less. PFAS-free rain gear/outdoor clothing exists.
Surprising interest in book/podcasts; nonprofits spreading messages. Plastics treaty worldwide didn't pass but may return. EU ahead: new chemicals must pass safety tests before commerce (not in US—testing on public). Lawsuits effective; states like California active (e.g., AG Rob Bonta); sets tone without federal action soon. Industry controls federal government over health/safety. US allows chemicals banned in EU; "number one in chemicals."
Previous podcast response shocking: friends/parents/pregnant people concerned about child development. Situation hasn't improved; personal/government action needed. Netflix enables sharing/social media buzz. Documentary showings worldwide; schedule crazy. Many pushing back publicly/privately; lucky for platforms like this podcast, Huberman. Film costly but worldwide support.
Documentary digestible on Netflix with resources to learn more. View by influencers, religious leaders, peers, doctors (not taught in med school, nor nutrition; change tests to update curriculum). Pro-chemical industries resist due to economic impact across sectors (e.g., Lululemon). Short-term company issues, but switch to plant-based plastics. Tencel (semi-synthetic), all-natural (100% organic cotton, 90% cotton/10% spandex). Plant-based bioplastics (e.g., castor bean oil) perform best in stretch/compression/durability but still plastic, not fully non-toxic.
Tested 9 near-plastic-free leggings (fittery.com):
- Mate: Best middle-ground; comfortable for low-impact/everyday; squat test passed (size up).
- Pangaya: For hardcore workouts; compressive, great stretch; squat test passed; 92% polyomide bio-based EVO (30% bio-based), 8% creora elastane (30% bio-based); closest to synthetics in fit/feel/stretch/compression.
Options exist; check for companies.
Boost and more people will wear them. Anything else before we get going? Think we covered it all?
I think we sounded the alarm.
I think we tried again. Anyway, yeah, we did something.
It's a volume thing. More and more of these conversations have to take place so that in the general zeitgeist more people are aware of it and it just increases awareness and makes more people make better choices.
Your platform is so huge that I'm really encouraged to have the opportunity to talk about this with you and happy to come back.
I'd be happy to have you back. Loved you the first time, you're great the second time as well. For everybody one more time, The Plastic Detox, that's the name of the documentary. It's available right now on Netflix. Go check it out and fix your life, kids.
Thank you. I really appreciate it. It was really fun. Thank you.
It's great.
I'm really so happy that you're out there because if you weren't doing this very important work, I wouldn't know about it and I think a lot of other people wouldn't either. So, thank you.
So, pee in the cup.
I will pee in the cup. I promise you. I'll pee in the cup and send you if you want to do the next steps. Let me know.
I will do the next steps as well.
Talk to that microphone so people know what you're saying.
When you're ready to have another test kit or you can go to Million Marker and just order one. It's $100.
We'll do it. We'll send it for nothing if you want. Just let me know. I'll give you the hundred bucks. Okay. Thank you very much. Appreciate it. All right. Bye, everybody.
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