The School of Doza Podcast

What if a single gene is quietly affecting your mood, energy, sleep, and focus — and most doctors never test for it? In this episode of the Longevity Series, Nurse Doza breaks down MTHFR gene support: what methylation is, why this gene matters, and how BLISS by MSW Nutrition delivers targeted sublingual support — sometimes with noticeable results the same day.

BLISS by MSW Nutrition is a sublingual powder formulated with two active ingredients specifically designed to support the MTHFR gene and the methylation cycle. For people with MTHFR variants — who may struggle with mood regulation, low energy, brain fog, and disrupted sleep — BLISS bypasses the digestive process entirely, delivering its active compounds directly into the bloodstream under the tongue for fast, efficient absorption. Nurse Doza and co-founder Baldo both have confirmed MTHFR issues and take BLISS daily — this is a supplement built from personal need, not theory. One box contains 30 packets, making it a full 30-day protocol.

👉 Try BLISS with code BLISSMAY at: https://bliss.mswnutrition.com

5 Key Takeaways
MTHFR gene variants are far more common than most people realize. Approximately 30–40% of people carry a variant of the MTHFR gene that reduces enzyme efficiency — sometimes by as much as 70%. If you’ve ever been dismissed with “normal” labs while still feeling off, this gene may be the missing piece.

Methylation controls more of your health than you think. The methylation cycle governs neurotransmitter production, detoxification, hormone regulation, and DNA repair. When MTHFR impairs this pathway, mood, energy, digestion, and long-term health can all be affected.

Low serotonin from poor methylation can wreck your sleep. Because serotonin is the precursor to melatonin, impaired methylation can directly disrupt your sleep-wake cycle. Supporting the MTHFR pathway can help restore the serotonin–melatonin conversion your body needs for deep, restorative sleep.

Sublingual delivery changes the absorption game. Traditional capsules and powders can lose significant potency through first-pass digestion. BLISS is a sublingual powder that bypasses the GI tract entirely, entering the bloodstream directly through the oral mucosa for faster, more efficient delivery.

You can override poor genetics with the right support. Having an MTHFR variant is not a life sentence. Targeted methylation support through active-form nutrients can help compensate for reduced enzyme activity, improving neurotransmitter output and overall cellular function.

Resources

“Methylenetetrahydrofolate Reductase and Psychiatric Diseases” — PMC, NCBI
Peer-reviewed research examining how MTHFR gene mutations affect one-carbon metabolism and their established link to psychiatric disorders, mood regulation, and neurotransmitter synthesis including serotonin and dopamine. https://pmc.ncbi.nlm.nih.gov/articles/PMC6218441/

“Discovery of MTHFR Deficiency in Individuals With Common Psychiatric Comorbidities” — PMC, NCBI
Retrospective case review from PMC establishing the connection between MTHFR deficiency and common psychiatric presentations, with focus on neurotransmitter pathways including serotonin, norepinephrine, and dopamine. https://pmc.ncbi.nlm.nih.gov/articles/PMC11088868/

“Chronic Insomnia in the Setting of MTHFR Polymorphism” — Journal of Clinical Sleep Medicine, PMC
Published case study documenting treatment-resistant chronic insomnia successfully resolved by targeting MTHFR polymorphism, demonstrating the serotonin–melatonin–sleep connection and the role of methylation support in restoring sleep quality. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8974368/

“Sublingual and Buccal Delivery: A Historical and Scientific Prescriptive” — PMC, NCBI
Comprehensive review of sublingual and buccal delivery mechanisms, demonstrating how this route bypasses first-pass hepatic metabolism and leverages the oral mucosa’s rich vascular network for faster, more efficient systemic absorption versus standard oral supplementation. https://pmc.ncbi.nlm.nih.gov/articles/PMC12389210/

“The MTHFR Gene Mutation and Its Connection to Mental Health” — Genomind
Evidence-based overview of how MTHFR gene variants reduce the body’s ability to convert vitamin B9 into active methylfolate, directly impacting neurotransmitter synthesis and predisposing individuals to low mood, low energy, and cognitive difficulties. https://genomind.com/patients/mthfr-and-the-role-it-plays-in-your-mental-health/

Connect with Nurse Doza
🔗 JOIN MY SCHOOL for FREE: https://community.schoolofdoza.com/c/start-here
• YouTube: https://www.youtube.com/channel/UCwcKyagDi468WscAOWM5VHA
• Instagram: https://www.instagram.com/nursedoza/
• Website: http://www.nursedoza.com/
• LinkedIn: https://www.linkedin.com/in/jonathan-mendoza-dc-aprn-np-c-0609a038/
• TikTok: https://www.tiktok.com/@nursedoza
• Twitter: https://twitter.com/nursedoza

Chronic stress belly fat is more than a feeling — it changes your hormones, metabolism, and cravings. Nurse Doza breaks down 5 specific mechanisms — cortisol, insulin resistance, leptin dysfunction, fatty liver, and late-night eating — explaining exactly why belly fat won't budge and what to do about it.

FEATURED PRODUCT: 
The Metabolic Pack from MSW Nutrition is the complete protocol for everything covered in this episode. Liver Boost combines turmeric (curcumin), green tea extract (EGCG), NAC, and alpha-lipoic acid to reduce inflammation, support liver detoxification, and combat insulin resistance at the cellular level. Mitochondriac delivers resveratrol and key mitochondrial support to activate AMPK, improve cellular energy, and lower inflammatory markers linked to chronic stress and weight gain. Zen contains an adaptogenic blend with Rhodiola, Ginseng, Eleuthero, Schisandra, and bovine adrenal glandular support — specifically designed to regulate cortisol and protect adrenal health. Together, these three supplements form a 60–90 day metabolic reset built to address the root causes of chronic stress belly fat.

👉 Get the Metabolic Pack here: https://mswnutrition.com/collections/bundles/products/metabolic-pack

JOIN THE SCHOOL OF DOZA
Still trying to figure out why the belly fat won't budge despite doing everything right? You're not alone — and generic advice isn't enough. Inside the School of Doza, you'll find a community of people working through the same hormonal, metabolic, and stress-related challenges covered in this episode. Every Wednesday, Nurse Doza hosts a live Ask Me Anything that works exactly like a group consult — bring your cortisol questions, your labs, your weight loss frustrations, and get real answers. Your first 7 days are completely free.

👉 Start your free trial: https://community.schoolofdoza.com/c/start-here

5 KEY TAKEAWAYS
Cortisol is not the villain — it's essential. 
Insulin resistance is the engine behind belly fat 
You may be eating when you are not actually hungry. 
Fatty liver and belly fat are directly connected. 
When you eat matters as much as what you eat. 

TIMESTAMPS
00:00 – START 
01:03 – The connection between chronic stress, cortisol, and belly fat
03:30 – Why cortisol is not the villain 
05:00 – Cortisol — how chronic elevation drives fat storage
06:00 – Insulin resistance — the real driver of weight gain
07:25 – Ozempic, GLP-1 agonists, and why they don't fix the root cause
09:53 – Natural compounds for insulin resistance: berberine, curcumin, EGCG, resveratrol
16:43 – Leptin resistance — eating when you are not actually hungry
21:00 – Fasting as the most sustainable tool for lowering leptin and insulin
23:51 –Fatty liver — the overlooked driver of belly fat
26:42 – The global obesity crisis and the limits of pharmaceutical solutions
28:50 – Eating late at night disrupts melatonin and glucose tolerance

RESOURCES
1. Cortisol and Weight Gain (HPA Axis and Obesity Review) —  https://pmc.ncbi.nlm.nih.gov/articles/PMC9285588/
2. Visceral Adipose Tissue, 11β-HSD1, and Metabolic Syndrome https://pmc.ncbi.nlm.nih.gov/articles/PMC4517681/
3. Natural Polyphenols and Obesity-Induced Insulin Resistance https://pmc.ncbi.nlm.nih.gov/articles/PMC12872655/
4. Leptin, Leptin Resistance, and Obesity  https://pmc.ncbi.nlm.nih.gov/articles/PMC8167040/
5. Fatty Liver (NAFLD) and Obesity https://pmc.ncbi.nlm.nih.gov/articles/PMC3575093/
6. Nighttime Eating and Weight Gain https://pmc.ncbi.nlm.nih.gov/articles/PMC6322536/
7. Nighttime Macronutrient Intake and Insulin Resistance https://pmc.ncbi.nlm.nih.gov/articles/PMC4425165/
8. Meal Timing, Late Dinner, and Weight Loss Difficulty https://pmc.ncbi.nlm.nih.gov/articles/PMC6893547/
9. Hume Health BodyPod — At-Home Body Composition Measurement (use code NURSEDOZA) https://humehealth.com

CONNECT
🔗 Connect with Nurse Doza:
JOIN MY SCHOOL for FREE: https://community.schoolofdoza.com/c/start-here
YouTube: https://www.youtube.com/channel/UCwcKyagDi468WscAOWM5VHA
Instagram: https://www.instagram.com/nursedoza/
Website: http://www.nursedoza.com/
LinkedIn: https://www.linkedin.com/in/jonathan-mendoza-dc-aprn-np-c-0609a038/
TikTok: https://www.tiktok.com/@nursedoza
Twitter: https://twitter.com/nursedoza

Chronic stress belly fat is more than a feeling — it changes your hormones, metabolism, and cravings. Nurse Doza breaks down 5 specific mechanisms — cortisol, insulin resistance, leptin dysfunction, fatty liver, and late-night eating — explaining exactly why belly fat won't budge and what to do about it.

FEATURED PRODUCT: 
The Metabolic Pack from MSW Nutrition is the complete protocol for everything covered in this episode. Liver Boost combines turmeric (curcumin), green tea extract (EGCG), NAC, and alpha-lipoic acid to reduce inflammation, support liver detoxification, and combat insulin resistance at the cellular level. Mitochondriac delivers resveratrol and key mitochondrial support to activate AMPK, improve cellular energy, and lower inflammatory markers linked to chronic stress and weight gain. Zen contains an adaptogenic blend with Rhodiola, Ginseng, Eleuthero, Schisandra, and bovine adrenal glandular support — specifically designed to regulate cortisol and protect adrenal health. Together, these three supplements form a 60–90 day metabolic reset built to address the root causes of chronic stress belly fat.

👉 Get the Metabolic Pack here: https://mswnutrition.com/collections/bundles/products/metabolic-pack

JOIN THE SCHOOL OF DOZA
Still trying to figure out why the belly fat won't budge despite doing everything right? You're not alone — and generic advice isn't enough. Inside the School of Doza, you'll find a community of people working through the same hormonal, metabolic, and stress-related challenges covered in this episode. Every Wednesday, Nurse Doza hosts a live Ask Me Anything that works exactly like a group consult — bring your cortisol questions, your labs, your weight loss frustrations, and get real answers. Your first 7 days are completely free.

👉 Start your free trial: https://community.schoolofdoza.com/c/start-here

5 KEY TAKEAWAYS
Cortisol is not the villain — it's essential. 
Insulin resistance is the engine behind belly fat 
You may be eating when you are not actually hungry. 
Fatty liver and belly fat are directly connected. 
When you eat matters as much as what you eat. 

TIMESTAMPS
00:00 – START 
01:03 – The connection between chronic stress, cortisol, and belly fat
03:30 – Why cortisol is not the villain 
05:00 – Cortisol — how chronic elevation drives fat storage
06:00 – Insulin resistance — the real driver of weight gain
07:25 – Ozempic, GLP-1 agonists, and why they don't fix the root cause
09:53 – Natural compounds for insulin resistance: berberine, curcumin, EGCG, resveratrol
16:43 – Leptin resistance — eating when you are not actually hungry
21:00 – Fasting as the most sustainable tool for lowering leptin and insulin
23:51 –Fatty liver — the overlooked driver of belly fat
26:42 – The global obesity crisis and the limits of pharmaceutical solutions
28:50 – Eating late at night disrupts melatonin and glucose tolerance

RESOURCES
1. Cortisol and Weight Gain (HPA Axis and Obesity Review) —  https://pmc.ncbi.nlm.nih.gov/articles/PMC9285588/
2. Visceral Adipose Tissue, 11β-HSD1, and Metabolic Syndrome https://pmc.ncbi.nlm.nih.gov/articles/PMC4517681/
3. Natural Polyphenols and Obesity-Induced Insulin Resistance https://pmc.ncbi.nlm.nih.gov/articles/PMC12872655/
4. Leptin, Leptin Resistance, and Obesity  https://pmc.ncbi.nlm.nih.gov/articles/PMC8167040/
5. Fatty Liver (NAFLD) and Obesity https://pmc.ncbi.nlm.nih.gov/articles/PMC3575093/
6. Nighttime Eating and Weight Gain https://pmc.ncbi.nlm.nih.gov/articles/PMC6322536/
7. Nighttime Macronutrient Intake and Insulin Resistance https://pmc.ncbi.nlm.nih.gov/articles/PMC4425165/
8. Meal Timing, Late Dinner, and Weight Loss Difficulty https://pmc.ncbi.nlm.nih.gov/articles/PMC6893547/
9. Hume Health BodyPod — At-Home Body Composition Measurement (use code NURSEDOZA) https://humehealth.com

CONNECT
🔗 Connect with Nurse Doza:
JOIN MY SCHOOL for FREE: https://community.schoolofdoza.com/c/start-here
YouTube: https://www.youtube.com/channel/UCwcKyagDi468WscAOWM5VHA
Instagram: https://www.instagram.com/nursedoza/
Website: http://www.nursedoza.com/
LinkedIn: https://www.linkedin.com/in/jonathan-mendoza-dc-aprn-np-c-0609a038/
TikTok: https://www.tiktok.com/@nursedoza
Twitter: https://twitter.com/nursedoza

Sleep and weight gain are directly connected. Poor sleep disrupts hormones, raises blood sugar, tanks testosterone and estrogen, causes fatty liver, and wrecks your gut. If you've been doing everything right and the scale won't move, your sleep could be the missing link.

FEATURED PRODUCT
Chill by MSW Nutrition is a powdered drink mix formulated to support your body's natural calming chemistry — exactly what's needed when chronic stress and cortisol overload are stealing your sleep. Featuring GABA, L-Theanine, myo-Inositol, Taurine, and Magnesium, Chill helps balance neurotransmitters, quiet the nervous system, and promote the deep, restorative sleep your hormones, metabolism, and weight depend on — all five mechanisms discussed in this episode.

👉 Get Chill here: https://mswnutrition.com/products/chill

 

5 KEY TAKEAWAYS
Sleep deprivation activates the HPA axis, raising cortisol and suppressing melatonin 
Poor sleep spikes blood sugar and insulin even without eating. 
Lack of REM sleep directly lowers testosterone in men and disrupts estrogen in women. 
Poor sleep causes fatty liver (MASLD/NAFLD) by disrupting insulin sensitivity, lipid metabolism, and inflammation markers like TNF-alpha, IL-6, and CRP. Melatonin — made during quality sleep — has been shown to actually prevent and reverse fatty liver progression.
Sleep deprivation damages the gut microbiome by reducing beneficial bacteria like Akkermansia and Bacteroides, breaking down the intestinal barrier, and triggering gut-brain neuroinflammation — all of which contribute to weight gain and metabolic dysfunction.

TIMESTAMPS
00:00 START – Welcome and episode overview
00:30 – Opening hook: why sleep is the missing weight loss variable
01:45 – How sleep deprivation disrupts hormones, metabolism, and fat storage
03:30 – School of Doza: Wednesday AMAs and free 7-day trial
06:40 – Way 1: Poor sleep increases inflammation via cortisol and HPA axis activation
10:30 – The cortisol-melatonin connection and why melatonin matters for weight
13:00 – Melatonin in the gut: 10–100x more than the brain, and what that means
15:30 – Way 2: Poor sleep causes high blood sugar and insulin resistance
17:40 – Late-night eating, sugar crashes, and the 3 a.m. wake-up pattern
21:00 – Leptin disruption, nighttime hunger, and the diabetes–sleep link
25:30 – Amyloid, insulin, and the Alzheimer's connection to sleep deprivation
29:30 – Way 3: Poor sleep lowers testosterone and estrogen
31:30 – Estrogen's role in initiating sleep; menopause, CPAP, and beer belly
32:00 – Way 4: Poor sleep causes fatty liver (MASLD/NAFLD)
35:30 – Way 5: Poor sleep destroys gut health and microbiome diversity
37:00 – Chill by MSW Nutrition: the sleep and cortisol support product
38:30 – Closing thoughts and call to join the School of Doza

RESOURCES
Sleep Disorders and Metabolic-Associated Steatotic Liver Disease (MASLD) – Covers HPA axis activation, melatonin's role in fatty liver, estrogen/testosterone disruption, and insulin sensitivity. https://pmc.ncbi.nlm.nih.gov/articles/PMC12315459/
Sleep Duration, Type 2 Diabetes, and Glucose Metabolism – Documents the relationship between short sleep duration and elevated T2DM risk, and the role of NF-kB inflammatory markers. https://pmc.ncbi.nlm.nih.gov/articles/PMC6893547/
Sleep Deprivation, Gut Microbiota Dysbiosis, and Metabolic Disease – Covers leptin/ghrelin shifts, serum amyloid A, Firmicutes/Bacteroidetes ratio changes, and intestinal barrier disruption. https://pmc.ncbi.nlm.nih.gov/articles/PMC10253795/
Chill by MSW Nutrition – GABA, L-Theanine, Magnesium, myo-Inositol, and Taurine sleep and cortisol support blend. https://mswnutrition.com/products/chill
School of Doza Community – Join for free sleep classes, Wednesday AMAs, and group coaching. https://community.schoolofdoza.com/c/start-here

🔗 Connect with Nurse Doza:

JOIN MY SCHOOL for FREE: https://community.schoolofdoza.com/c/start-here
YouTube: https://www.youtube.com/channel/UCwcKyagDi468WscAOWM5VHA
Instagram: https://www.instagram.com/nursedoza/
Website: http://www.nursedoza.com/
LinkedIn: https://www.linkedin.com/in/jonathan-mendoza-dc-aprn-np-c-0609a038/
TikTok: https://www.tiktok.com/@nursedoza
Twitter: https://twitter.com/nursedoza

Two supplements. One morning stack. Nurse Doza breaks down why Liver Boost and Berberine Plus work better together — and how the Good Poops Protocol combines them with a gut-repair formula to support liver, gallbladder, blood sugar, and weight. 

Today is the last day to save an extra 10% automatically on the full protocol.

The Good Poops Protocol is a three-supplement system designed by Nurse Doza, DC, RN, FNP-C — combining Liver Boost (16-ingredient Phase I + II liver detox support), Berberine Plus (5x more bioavailable dihydroberberine for blood sugar and digestion), and Gut (L-Glutamine formula for intestinal lining and gut flora) — into one 60-day protocol. As discussed in this episode, when you support liver function and blood sugar management simultaneously, the downstream effects on digestion, weight, and overall health can be profound — and noticeable within days.

👉  Get the Good Poops Protocol 
Extra 10% Off Today: https://good-poops.mswnutrition.com/
(Discount is automatic — no code needed — April only, last day)

5 Key Takeaways
Liver Boost and Berberine work better together. Taking them separately misses the synergy. Stacked together first thing in the morning on an empty stomach, they hit liver detoxification and blood sugar management simultaneously — two systems that are deeply interconnected.
Your blood sugar ends up in your liver. Every glucose spike you take in gets processed by the liver. If liver function is compromised, blood sugar regulation suffers. Supporting both at once is the smarter approach.
Timing and dosing matter. Start with one to two Liver Boost capsules in the morning on an empty stomach. Add Berberine Plus at the same time, or experiment with a dose before your largest meal. Most people notice digestive changes within days, and broader improvements within a few weeks.

The Good Poops Protocol adds the gut layer. Liver Boost and Berberine address upstream function, but the Gut formula — an L-Glutamine-based powder — repairs the intestinal lining and supports gut flora. All three systems depend on each other.
Play around with it. There's no single rigid protocol. Nurse Doza encourages listeners to experiment with meal timing, split dosing, and combinations to find what works for their specific body and goals.

Resources
"Biochemical Changes Associated with Non-Alcoholic Fatty Liver Disease in Response to Berberine Treatment" — Systematic review and meta-analysis from Frontiers in Pharmacology demonstrating that berberine significantly reduced fasting blood glucose levels and improved liver enzyme markers (ALT, AST) across both clinical and preclinical studies.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12433188/

"Efficacy and Safety of Berberine Alone for Several Metabolic Disorders" — PMC systematic review and meta-analysis of randomized clinical trials examining berberine's effects on NAFLD, type 2 diabetes, blood sugar, and lipid profiles.
https://pmc.ncbi.nlm.nih.gov/articles/PMC8107691/

"Berberine Influences Multiple Diseases by Modifying Gut Microbiota" — Frontiers in Nutrition 2023 review covering how berberine's interaction with gut microbiota produces downstream effects on metabolic disease, liver disease, and intestinal health.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10435753/

"Impact of Silymarin Supplements on Liver Enzyme Levels: A Systematic Review" — PMC review of 29 randomized controlled trials (3,846 participants) evaluating silymarin's hepatoprotective effects and impact on liver enzyme levels across diverse clinical conditions.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10667129/

"Regulation of Hepatic Glucose Metabolism in Health and Disease" — Nature Reviews Endocrinology / PMC explaining the liver's central role in glucose homeostasis, including how hepatic dysfunction contributes to hyperglycemia in type 1 and type 2 diabetes.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5777172/

Connect with Nurse Doza
🔗  JOIN MY SCHOOL for FREE: https://community.schoolofdoza.com/c/start-here
YouTube: https://www.youtube.com/channel/UCwcKyagDi468WscAOWM5VHA
Instagram: https://www.instagram.com/nursedoza/
Website: http://www.nursedoza.com/
LinkedIn: https://www.linkedin.com/in/jonathan-mendoza-dc-aprn-np-c-0609a038/
TikTok: https://www.tiktok.com/@nursedoza
Twitter: https://twitter.com/nursedoza