Neurologist Reveals How Vitamin D & the Microbiome Is Linked to Sleep Disorders | Dr. Stasha Gominak
•March 2, 2026
0
Why It Matters
Because vitamin D deficiency underlies many modern sleep disorders, early detection and targeted supplementation could improve patient outcomes and reduce healthcare costs associated with chronic insomnia and related comorbidities.
Key Takeaways
- •Vitamin D deficiency linked to widespread sleep disturbances
- •Low D disrupts microbiome, affecting metabolism and circadian rhythms
- •Supplementation can improve sleep, but dosage and absorption matter
- •Aging reduces natural D synthesis, increasing sleep disorder risk
- •Holistic approach needed; vitamins, microbiome, and lifestyle interact
Summary
Dr. Stasha Gominak, a neurologist with decades of experience, argues that the global rise in sleep disorders is rooted in widespread vitamin D deficiency and its downstream impact on the gut microbiome. She frames vitamin D not merely as a nutrient but as a steroid hormone that regulates sex hormones, thyroid function, metabolism, and circadian signaling.
Her research shows that low vitamin D levels trigger microbiome dysbiosis, prompting the body to store calories as fat and suppress deep‑sleep phases. Clinical observations reveal that modest supplementation can restore sleep quality, but the relationship between dose, blood level, and cellular uptake is complex; high doses may be fully absorbed with no residual serum, masking true deficiency.
A striking case involved an 18‑year‑old college student whose sleep study showed fragmented, non‑restorative sleep despite ten hours in bed. After identifying a profound B12 deficiency and correcting it, her headaches vanished and sleep normalized, underscoring the interplay of micronutrients. Gominak also recounts a patient who reported better sleep after three weeks of vitamin D, illustrating rapid clinical response.
The implications are clear: physicians should routinely assess vitamin D status, consider microbiome health, and personalize supplementation rather than rely on blanket dosing. Addressing this hormonal deficiency could curb the reliance on CPAP and sleep medications, offering a preventive strategy for the burgeoning sleep‑disorder epidemic.
Original Description
If you’ve improved your sleep hygiene but still struggle with poor sleep quality, there may be a deeper root cause. In this episode, neurologist and sleep expert Dr. Stasha Gominak explains the critical role vitamin D plays in regulating sleep, brain function, and gut health—and why deficiency could be disrupting your ability to get truly restorative sleep.
Neurologist Dr. Stasha Gominak explains how vitamin D plays a critical role in regulating sleep, brain function, and gut health—and why deficiencies may be the hidden cause of poor sleep quality. In this episode, you’ll learn the science behind vitamin D, the microbiome, and key neurotransmitters, plus practical strategies to restore deep, restorative sleep naturally.
Connect with Dr. Stasha Gominak: https://drgominak.com/
Watch more videos like this:
Timestamps:
00:00 - Introduction
02:24 - Dr. Gominak's groundbreaking study explained
06:09 - How vitamin D levels affect sleep
09:58 - Why do elderly people lose teeth?
12:01 - Vitamin D is part of a circadian system.
19:08 - Vitamin D and B12 deficiencies discussed.
21:04 - Vitamin D receptors found in the brain.
24:00 - Vitamin D influences calorie storage in the body.
29:23 - Vitamin D effects on patients over two years
32:03 - Discovery of pantothenic acid's benefits
34:00 - Unusual burning sensations in patients' hands and feet
38:31 - Patients report mixed reactions to B vitamins
41:01 - Importance of microbiome in vitamin absorption
46:00 - B vitamin soup to restore gut health
48:17 - Importance of vitamin D and B vitamins
50:42 - Microbiome's role in nutrient absorption
54:31 - Unique microbiomes in different body parts
58:30 - Importance of personal biochemistry awareness
1:00:16 - Benefits of spending time outdoors
Shawn Stevenson is the author of the USA Today National bestsellers Eat Smarter and the Eat Smarter Family Cookbook, as well as the international bestselling book Sleep Smarter. He’s also the creator of The Model Health Show, featured as the number #1 health podcast in the U.S. with millions of listener downloads each year. A graduate of the University of Missouri–St. Louis, Shawn studied business, biology, and nutritional science and became the cofounder of Advanced Integrative Health Alliance. Shawn has been featured in Forbes, Fast Company, The New York Times, Muscle & Fitness, Good Morning America, ESPN, and many other major media outlets.
Get the Eat Smarter Book here: https://eatsmarterbook.com
Start the Fat Loss Code Course here: https://www.thefatlosscode.com
Let’s Connect...
Website: https://themodelhealthshow.com
0
Comments
Want to join the conversation?
Loading comments...