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Vitamin D Expert: The Supplement World Is Giving The WRONG Advice!

Nearly 1 in 3 American adults now take vitamin D, but Dr. Stasha Gominak says many of them are taking it wrong, and that done carelessly, supplementing can leave you worse off than before. Dr. Stasha Gominak practiced neurology for over 20 years. She earned her MD from Baylor College of Medicine and completed her neurology residency at the Harvard-affiliated Massachusetts General Hospital. After working with her own patients, she believes that nearly everyone struggling to sleep shares the same hidden deficiency, a conclusion she published in 2 papers and built into RightSleep, the method she now teaches full time. She explains: ◼ Why she believes your skin is the best producer of vitamin D, and why she says no amount of pills or salmon can replace it ◼ Why she believes insomnia isn't a behavior problem but a chemical deficiency, and what she thinks changed when we moved indoors ◼ The role she says your gut bacteria play in producing your B vitamins ◼ Why she believes taking vitamin D on its own can burn through your B vitamins, and what she says happened when she tried it herself ◼ Why she connects the rise in conditions like ADHD, depression, fatty liver and diabetes to the same period, and what she thinks links them ◼ Why she considers supplements a form of biohacking, and just as risky as any drug if you get them wrong The views expressed are those of the guest, and this conversation is intended for general informational purposes only. This podcast and its associated materials should not be used as a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your physician before making any changes to your diet, supplements or health regimen. 00:00:00 Intro 00:02:40 Why So Many People Are Suddenly Struggling With Sleep 00:03:42 Why Healthy Young People Are Waking Up Exhausted With Headaches 00:08:15 How Your Brain Secretly Controls Every Stage Of Sleep 00:15:35 How Vitamin D Could Be The Missing Piece For Better Sleep 00:21:02 Are Sleep Chronotypes Actually Real Or Just A Myth? 00:25:16 How Can You Prove Vitamin D Deficiency Causes Disease? 00:52:40 What Happened When I Started Treating Patients With Vitamin D 00:57:15 Does Vitamin D Deplete Your Body's B Vitamins? 01:00:46 Can Vitamin B Supplements Really Fix Your Gut? 01:14:58 Why Minerals Could Be The Overlooked Key To Better Health 01:15:45 Ads 01:16:54 Does Modern Medicine Accept This Vitamin D Theory? 01:20:03 What Your Gut Microbiome Reveals About Your Sleep 01:24:56 How To Build The Right Sleep Protocol For Better Rest 01:30:47 Is Sunlight And Nutrition Better Than Supplements? 01:34:57 Can Redheads Naturally Produce More Vitamin D? 01:37:04 Why Spending Too Much Time Indoors Is Hurting Your Health 01:40:07 Can You Still Make Vitamin D On Cloudy Days? 01:41:11 Can Vitamin D Lamps Replace Natural Sunlight? 01:43:03 The Best Diet To Boost Vitamin D And Improve Gut Health 01:49:07 What Actually Helps If You Have Sleep Apnoea Or Narcolepsy? 01:56:09 My Most Controversial Health Opinion Explained 01:58:10 The Best Day Of Your Life And Why It Matters Independent Fact Check: https://stevenbartlett.com/wp-content/uploads/2026/07/DOAC-Dr-Stasha-Gominak-Independent-Research-Further-Reading.pdf Dr. Stasha Gominak: ◼ RightSleep - https://link.thediaryofaceo.com/Gmn0oAj ◼ YouTube - https://link.thediaryofaceo.com/EqV6qH3 ◼ Instagram - https://link.thediaryofaceo.com/20mY5VF ◼ Facebook - https://link.thediaryofaceo.com/GTUovlV The Diary Of A CEO: ◼ Join DOAC circle here - https://doaccircle.com/ ◼ Buy The Diary Of A CEO book here - https://smarturl.it/DOACbook ◼ The 1% Diary is back - limited time only - https://bit.ly/3YFbJbt ◼ The Diary Of A CEO Conversation Cards - https://linkly.link/2hm7r ◼ Get email updates - https://bit.ly/diary-of-a-ceo-yt ◼ Follow Steven - https://g2ul0.app.link/gnGqL4IsKKb Sponsors: Shopify - https://shopify.com/bartlett Linkedin Talent Solutions - http://linkedin.com/DOAC

Dr. Stasha GominakguestSteven Bartletthost
Jul 27, 20262h 0mWatch on YouTube ↗

CHAPTERS

  1. 0:00 – 4:55

    Why vitamin supplements (especially D) can be as risky as drugs

    Dr. Stasha Gominak argues the supplement world gives dangerously oversimplified advice, especially around vitamin D. She frames modern sleep problems as a biochemical issue tied to deficiency states created by indoor living rather than just poor habits. The conversation sets up her claim that low vitamin D can make the brain “forget” how to sleep.

    • Supplements can cause harm if taken without understanding dosing and physiology
    • Sun avoidance/indoor living as a modern driver of deficiency-related illness
    • Sleep problems often persist despite standard behavioral sleep hygiene
    • Vitamin D is positioned as central to sleep chemistry (preview of her thesis)
    • Vitamin D described as misclassified (hormone vs vitamin)
  2. 4:55 – 8:16

    From headache clinic to sleep medicine: the CPAP discovery and atypical sleep apnea

    Gominak explains how a headache patient pushed her into sleep studies, revealing unexpected sleep apnea in young, thin women. CPAP resolved long-standing daily headaches, forcing her to reconsider sleep as upstream of multiple neurologic symptoms. She broadens the lens from “headache treatment” to “sleep architecture as repair.”

    • Young, thin patients can have sleep apnea; not just ‘older overweight men’
    • CPAP can eliminate chronic daily headaches in some cases
    • Repeated 3 a.m. awakenings and morning headaches as common presentations
    • Sleep studies became her tool to investigate ‘invisible’ dysfunction
    • Early observation: modern living seems mismatched with human biology
  3. 8:16 – 15:52

    Sleep architecture explained: REM, deep sleep, and brainstem control

    She walks through hypnograms and the sequencing of light sleep, deep (slow-wave) sleep, and REM. The core claim is that the brainstem and autonomic nervous system run sleep, including the paralysis of REM. Abnormalities in REM timing and quantity become her clue that chemistry—not anatomy alone—is failing.

    • Sleep cycles: light sleep → deep sleep/slow-wave → REM across ~90-minute cycles
    • REM involves maximal paralysis; airway stability becomes critical then
    • Brainstem governs sleep stages, autonomic balance, heart rate and blood pressure
    • First half of night framed as more sympathetic; second half more parasympathetic
    • Low REM linked to mood and memory consolidation problems
  4. 15:52 – 21:03

    The acetylcholine hypothesis: parasympathetic deficit and ‘indoor’ neurotransmitter loss

    Gominak connects missing REM to a parasympathetic/autonomic chemistry problem, centering acetylcholine. She argues modern indoor life (less sun, more screens/AC) correlates with widespread dysregulation beginning in the 1980s. Her thesis: vitamin D status influences acetylcholine production via gene expression, affecting sleep switches.

    • Key question: what chemistry enables REM/paralysis and stable sleep transitions?
    • Acetylcholine as the parasympathetic neurotransmitter with roles in sleep and focus
    • Indoor lifestyle changes since the 1980s as a turning point for obesity/sleep/mental health trends
    • Vitamin D proposed to regulate enzymes needed for acetylcholine production
    • Critique of purely behavioral sleep advice for complex clinical cases
  5. 21:03 – 24:58

    Chronotypes under dispute: why ‘night owl’ may be reversible

    She challenges the strong genetic framing of chronotypes, claiming many patients normalize to ~10 p.m.–6 a.m. after correcting deficiencies. Shift work is framed as biologically incompatible long-term for ‘normal chemistry,’ with disease risk accumulating. The chapter positions circadian timing as more biochemical and environmental than fixed identity.

    • Chronotype as potentially modifiable rather than purely genetic
    • Patients (even long-term night workers) reportedly revert to earlier sleep timing
    • Shift work framed as a contributor to severe health decline in susceptible individuals
    • Population-level disease incidence increases since mid-1980s used as circumstantial support
    • Emphasis on day-hunter biology vs nocturnal species adaptations
  6. 24:58 – 33:07

    Proving deficiency leads to disease: three patient archetypes and the ‘no deep sleep’ alarm

    Steven presses on evidence; Gominak uses contrasting patient stories (severe metabolic/pain vs athletic postpartum) to show similar sleep disruption. A pivotal case is an 18-year-old with essentially no deep sleep, which she interprets as a dangerous brainstem chemistry failure. She reframes chronic illness as downstream of non-restorative sleep and impaired nightly repair.

    • Two extremes: ‘Madeline’ (multi-symptom, obese, postpartum) vs ‘Natalie’ (athletic postpartum)
    • Common thread: disrupted sleep and daily headaches despite very different lifestyles
    • 18-year-old with no deep sleep highlights ‘invisible’ high-risk physiology
    • Sleep as the body’s repair system (glymphatic/maintenance framing)
    • Critique of symptom-based medicine (‘Band-Aids’) vs root-cause investigation
  7. 33:07 – 41:14

    Finding vitamin D’s role: low levels everywhere, PubMed, and brainstem receptors

    After testing vitamin D widely, she finds most patients are low and some improve markedly when supplementing. PubMed leads her to Walter Stumpf’s work showing vitamin D receptors in brainstem nuclei tied to paralysis and sleep timing. This becomes her mechanistic bridge from low D to disrupted REM and sleep-stage control.

    • Vitamin D testing in ~500 patients revealed widespread low levels (especially in fall)
    • Some CPAP users’ headaches/sleep improved only after vitamin D supplementation
    • Discovery of vitamin D receptors in brainstem regions that regulate sleep and paralysis
    • Vitamin D framed as gene-regulating hormone affecting protein/enzyme production
    • Stumpf’s ‘hibernation hormone’ model used to interpret modern deficiency effects
  8. 41:14 – 53:15

    Vitamin D is a hormone: why ‘dose studies’ mislead and blood levels matter

    Gominak argues vitamin D should be treated like other hormones: monitored by blood level and kept within a tight band. She criticizes trials that use fixed doses without measuring achieved levels, seasonality, or baseline status. This underpins her view that institutional guidance discourages curiosity and pushes people toward unregulated self-experimentation.

    • Vitamin D produced in skin; oral intake not equivalent to natural biology
    • Hormones require level-based personalization; too high and too low both harmful
    • Critique: many studies give fixed IU doses without checking blood levels
    • Claims Endocrine Society guidance effectively discourages testing and learning
    • Supplements framed as ‘biohacking’ requiring journaling and feedback
  9. 53:15 – 1:00:37

    When vitamin D ‘works’ then backfires: emerging B-vitamin deficiency symptoms

    After initial improvements, some patients develop joint aches, burning hands/feet, agitation, and insomnia—symptoms she interprets as induced/revealed B-vitamin deficits. A book on pantothenic acid (B5) and old deficiency experiments provide a symptom cluster that matches her patients. The key lesson: vitamins have narrow optimal ranges and can worsen sleep when overdosed.

    • Reports of new symptoms after D improvement: joint pain, neuropathic burning, agitation
    • Pantothenic acid (B5) linked historically to sleep, gut symptoms, gait changes, burning pain
    • High-dose B5 caused ‘caffeine-like’ effects and insomnia in some patients
    • Idea: improved repair demand may increase need for cofactors (B vitamins)
    • Over- or under-supplying can produce similar complaint: sleep disruption
  10. 1:00:37 – 1:11:05

    Gut microbiome as the B-vitamin factory: ‘poop bacteria’ and why probiotics weren’t enough

    She claims the eight B vitamins are primarily made by gut bacteria and absorbed, making microbiome health central to restoring natural B supply. Fecal transplants illustrate how changing gut ecology can reverse severe illness, reframing microbes as allies. She argues D alone didn’t reliably normalize the microbiome, but D plus a full B-complex could provide needed growth factors.

    • Eight B vitamins described as bacterial growth factors produced by gut microbes
    • Fecal transplant example: restoring microbial ecology can be life-saving
    • Human microbiome diversity is vast; only a small portion is well-characterized
    • IBS symptoms seen as a marker of microbiome dysfunction in her patients
    • Thesis: D + B-complex can help ‘grow back’ a normal microbiome ecosystem
  11. 1:11:05 – 1:24:56

    Madeline & Natalie outcomes: D-level target, short-term B50/B100, and why weight loss may lag

    Gominak returns to the earlier cases: both women improve substantially when vitamin D is titrated to higher blood levels and B-complex support is added temporarily. Madeline’s recovery includes pain reduction, mood improvement, and functional return to work; Natalie returns to athletic baseline and resolves postpartum issues. She stresses that B-complex is often temporary (about three months) while D maintenance may be longer-term depending on sun exposure and need.

    • Reported target: vitamin D blood level around the 60s associated with sleep improvement
    • Madeline: major symptom reversal, medication reduction, renewed function; high ongoing D dose in her case
    • Natalie: postpartum depression, high resting heart rate, and sleep normalize; returns to training
    • B-complex typically used for ~3 months then tapered to multivitamin or none
    • Claim: weight loss may not occur until ‘deferred repairs’ are completed
  12. 1:24:56 – 1:30:47

    The RightSleep Protocol: step-by-step program and why journaling is mandatory

    They formalize the protocol: address behavioral sleep hygiene first, then use labs and staged supplementation (D to target level, B12 if low, B50 for three months, then multivitamin). She warns that many multivitamins contain high B doses and that dosing errors can recreate insomnia or pain. The practical emphasis is on tracking symptoms and interpreting relapse as a new nutrient signal rather than failure.

    • Start with standard sleep hygiene; don’t jump to supplements first
    • Protocol stages: vitamin D titration + B12 if needed + B50 for ~3 months + multivitamin
    • Frequent D testing and dose adjustment based on achieved blood levels
    • High-dose B vitamins can cause insomnia/pain once microbiome recovers
    • Keep a log; interpret changing sleep as feedback about shifting needs
  13. 1:30:47 – 1:49:12

    Sunlight, cloudy days, and lamps: why ‘supplement D’ ≠ ‘being outdoors’

    Gominak supports sunlight and fermented foods as the preferred route when problems are mild, but calls supplements the faster, more controllable intervention for severe cases. She explains why outdoor exposure delivers more than vitamin D (multiple UV-derived compounds and infrared/energy effects), and clarifies practicalities: windows block UVB, clouds vary, and UVA tanning won’t make D. The discussion also touches on redheads, melanin, and modern indoor time as a health risk multiplier.

    • Skin-made vitamin D may differ (e.g., sulfation) from oral forms; sunlight makes multiple compounds
    • Infrared exposure outdoors (even in shade) framed as mitochondrial support
    • Windows block UVB; cloudy conditions may still allow some UV penetration
    • UVA tanning beds tan but don’t produce vitamin D; UVB is required
    • Redhead/melanin adaptation discussion; indoor living levels linked to many modern illnesses
  14. 1:49:12 – 1:53:20

    Severe diagnoses (apnea/narcolepsy) and the controversial acetylcholine angle (nicotine)

    She argues end-stage sleep disorders may not resolve with lifestyle alone and can worsen transiently as REM returns (e.g., nightmares during transition). Narcolepsy is framed as treatable through the same biochemical lens, including acetylcholine support. She highlights an anecdote of nicotine patches improving narcolepsy-like symptoms, positioning nicotine as an acetylcholine mimic—an intentionally controversial claim.

    • Complex sleep diagnoses may require more intensive, guided intervention
    • Transition effects: REM return can surface nightmares and ‘feels worse before better’ phases
    • Narcolepsy reframed as severe sleep deprivation/chemistry failure rather than fixed destiny
    • Nicotine described as an acetylcholine mimic; anecdotal benefit via patches
    • Broader claim: sleep switches depend on microbiome-supplied metabolites plus vitamin D
  15. 1:53:20 – 2:00:19

    AI, mainstream resistance, and closing reflections: best day and where to learn more

    Steven shares an AI-generated summary of the modern sleep epidemic; Gominak notes AI’s ability to synthesize ideas without institutional bias. She states her core dissent: many sleep disorders are rooted in D deficiency and microbiome-derived metabolites. The episode closes with her ‘best day’ story and pointers to her website and sleep Q&A content.

    • AI synthesis seen as a catalyst for changing medical narratives
    • Her central claim: sleep disorders link back to D + microbiome metabolites and deficiencies
    • Bidirectional gut–sleep loop acknowledged as increasingly recognized
    • Personal closing: ‘best day of life’ emphasizes calm companionship over achievement
    • Resources: DrGominak.com and YouTube ‘sleep chats’

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