Thyroid Health Overview in a Functional Medicine Approach

Uncover the functional medicine approach for thyroid health to help you understand and address your thyroid health concerns.

Abstract

In this educational post, I, Dr. Alexander Jimenez, DC, APRN, FNP-BC, CFMP, IFMCP, ATN, CCST, share a first-person account of a patient journey that challenges the assumption that “more thyroid medication” is always the answer. I explain how the thyroid primarily produces T4 and how conversion to active T3 occurs across the liver, gut, kidneys, skeletal muscle, and brain. I discuss how systemic inflammation, hepatic lipid accumulation and bile stasis, gut dysbiosis and endotoxemia, and HPA-axis stress or caloric restriction disrupt T4-to-T3 conversion and drive elevated reverse T3, causing hypothyroid-like symptoms despite normal or medicated TSH/T4 levels. I also outline our integrative, multidisciplinary approach at Injury Medical Clinic PA (Mission Plaza Injury Medical Clinic) in El Paso, Texas, where I collaborate with Dr. Maria Guadalupe Cardenas, MD (Board Certified in Internal Medicine; NPI #1164426749; Texas MD License #J2933), who serves as Medical Director and Collaborative Physician. Together, we combine chiropractic care, functional medicine, internal medicine oversight, personal injury care, and rehabilitative strategies to restore physiologic conversion pathways, reduce inflammation, and resolve symptoms without unnecessary prescriptions. I present current research, clinical insights, and practical protocols that empower patients to regain metabolic vitality in a safe, evidence-based, and patient-centered way.

My First-Person Perspective: Why Many Patients Do Not Need Thyroid Medication

I often meet patients who have been on thyroid medication for years, yet they still feel exhausted, cold, foggy, and discouraged. One such patient, whom I will call Jennifer, is a 41-year-old woman who reached out after seven years of struggling on combined levothyroxine and Synthroid. She was gaining weight, felt persistently cold, suffered from brain fog, battled depression, and struggled to get through the day. She had already seen five different physicians. Her story is far from unique. In my experience of three decades in integrative clinical practice, I consistently see the same four physiological mechanisms accounting for the vast majority of “thyroid problems” that present like hypothyroidism but rarely require more thyroid medication.

Before I dive into these mechanisms, let me frame a foundational point that makes sense of everything that follows: the thyroid gland is a manufacturing plant for largely one product—thyroxine (T4). It is not the body’s chief supplier of the metabolically active hormone triiodothyronine (T3). The conversion from T4 to T3 happens in the periphery—predominantly in the liver and the gut, and also in the kidneys, skeletal muscle, and brain. When those peripheral conversion engines falter, patients can feel profoundly hypothyroid even when TSH and T4 appear “fine” on standard labs or are propped up by medications. In the wrong physiological environment, additional T4 can be shunted into reverse T3 (rT3), a competitive inhibitor that blocks T3 receptor activity and worsens symptoms.

This is why simply adding more T4-based medications like levothyroxine often fails. The clinician’s job, and mine, is to restore the function of those conversion engines and resolve the inflammatory and stress signals that divert T4 into rT3. Integrative chiropractic care and functional medicine provide a powerful framework for doing exactly that.

Our Multidisciplinary Model In El Paso: MD-Directed, Chiropractor-Led, Fully Integrative

At Injury Medical Clinic PA (also known as Mission Plaza Injury Medical Clinic) in El Paso, Texas, I practice within a multidisciplinary integrative model. I serve as a chiropractor and functional medicine clinician, and I am honored to work with our Medical Director and Collaborative Physician, Dr. Maria Guadalupe Cardenas, MD. Dr. Cardenas is Board Certified in Internal Medicine and brings more than 40 years of experience as an internist (NPI #1164426749; Texas MD License #J2933). Together, we align internal medicine oversight, chiropractic care, functional medicine, personal injury care, and rehabilitation services to give patients comprehensive, coordinated care.

• Cardenas oversees medical direction and collaborates on diagnostics, differential diagnosis, safety, and care coordination with primary and specialty providers when needed.
• I, Dr. Jimenez, integrate chiropractic care with functional medicine diagnostics and non-pharmacological interventions to restore metabolic physiology, reduce inflammation, and improve neuromusculoskeletal and autonomic regulation.
• The team includes rehabilitation specialists, health coaches, and, when appropriate, referrals to nutritionists, behavioral health, sleep specialists, and gastroenterology/hepatology partners.

This collaborative structure is common in modern integrative and injury care clinics, ensuring patients receive evidence-guided, safe, and personalized care.

The Thyroid Truth: The Gland Makes T4, The Body Makes T3

Here is the biological reality I teach every patient: the thyroid gland largely produces T4. The body generates active T3 mostly outside the thyroid. The conversion of T4 to T3 relies on deiodinase enzymes—primarily D1 and D2—within tissues such as the liver and gut. When D1 and D2 are suppressed, and D3 (which generates reverse T3) is upregulated, patients can enter a state of “cellular hypothyroidism” despite normal blood T4.

• The liver is a primary hub: most peripheral T4-to-T3 conversion occurs in hepatocytes via D1.
• The gut is a crucial partner: about one-fifth of active T3 may come from gut-associated pathways, including microbial deconjugation and enterohepatic recycling that returns bioactive hormone to portal circulation.
• Skeletal muscle, kidneys, and brain refine local thyroid tone through tissue-specific deiodinase activity, tuning metabolism to local demands.
• Under inflammation or stress, D3 expression rises, pushing T4 toward reverse T3, which competes with T3 at the receptor and blunts the metabolic response.

In this context, if peripheral conversion is broken, adding more T4 is like pouring fuel into a tank with a blocked fuel line—the engine still sputters, and sometimes the wrong fuel ends up in the wrong place.

The Four Mechanisms I See Most Often: Why T4-to-T3 Conversion Fails

In my practice, four physiological mechanisms explain the majority of cases where patients feel hypothyroid but do not benefit from more thyroid medication. None of these mechanisms require a prescription to begin correcting. They require understanding, targeted lifestyle and nutritional interventions, and coordinated care.

1. Systemic Inflammation: Cytokines, NF-?B, and Deiodinase Suppression

Systemic inflammation acts like a metabolic handbrake. Infections such as Epstein–Barr virus reactivation, obesity-related adiposopathy, environmental triggers, and gut-derived endotoxemia can all elevate pro-inflammatory cytokines. These cytokines activate NF-?B, a master transcriptional regulator of the inflammatory response. When NF-?B is active, D1 and D2 deiodinases are suppressed, and D3 is upregulated. This means:

• Less conversion of T4 to T3.
• More conversion of T4 to reverse T3.
• A net reduction in intracellular T3 action.

Patients may experience fatigue, cold intolerance, slowed cognitive processing, weight gain, and depressive symptoms. Physiologically, this shift is a conserved response—the body reduces energy expenditure in the face of perceived danger or illness. However, when it becomes chronic, it undermines quality of life and metabolic health.

Our role is to identify and address the sources of inflammation. Clinically, that may include evaluating viral titers when appropriate, screening for metabolic syndrome features, assessing sleep and stress, and investigating gut integrity. Interventions commonly involve anti-inflammatory nutrition, gut repair protocols, stress modulation, targeted supplementation, and physical medicine strategies that down-regulate nociception and sympathetic overdrive.

2. Hepatic Lipid Accumulation, ER Stress, and Bile Flow Stagnation

The liver is central to thyroid economy. Hepatocytes conduct a large share of T4-to-T3 conversion via D1. When hepatocytes accumulate lipid droplets, as in nonalcoholic fatty liver disease (NAFLD), or develop endoplasmic reticulum (ER) stress, D1 activity can decline. At the same time, bile composition and flow are altered. Thickened bile and cholestatic tendencies slow enterohepatic circulation, affecting hormone conjugation and recycling. The result is impaired conversion, altered clearance, and dysregulated hormone signaling.

Clinically, I often find that patients with suboptimal thyroid symptoms also show signs of hepatic congestion: elevated liver enzymes, ultrasound evidence of steatosis, or metabolic risk markers. Movement, targeted nutrition, and improving insulin sensitivity are foundational. Certain botanicals and nutrients that support bile flow and hepatic glutathione systems can be helpful when selected appropriately. Chiropractic care that improves thoracic mobility and diaphragmatic function may support lymphatic and visceral mobility, indirectly benefiting hepatic blood flow and bile dynamics through improved rib mechanics and respiratory excursion.

3. Gut Dysbiosis, Leaky Gut, and Loss of Thyroid Hormone Recycling

The gut’s role is twofold: it both influences systemic inflammation and participates directly in thyroid hormone recycling. Healthy gut microbiota harbor enzymes that deconjugate thyroid hormones in the intestine, allowing reabsorption into portal circulation. When dysbiosis is present, this deconjugation falters; valuable T3 is lost in the stool instead of being recirculated. Concurrently, a leaky gut permits lipopolysaccharides (LPS) to enter circulation, amplifying cytokines and, again, suppressing D1 while promoting D3.

I look for gastrointestinal symptoms, stool test markers, and dietary patterns that suggest dysbiosis. A phased gut restoration plan—removing triggers, replenishing nutrients, re-inoculating with targeted probiotics, and repairing the mucosal barrier—can reduce LPS burden and restore recycling. As the gut quiets, inflammation drops, D1 rebounds, and patients often report improved energy and thermoregulation.

4. HPA-Axis Stress, Cortisol, and Caloric Deficit Signaling

The body cannot distinguish between predator threat, chronic psychosocial stress, overtraining, or prolonged caloric deficit; they share downstream signatures through the hypothalamic-pituitary-adrenal (HPA) axis. Elevated cortisol suppresses D1, diminishing T3 production and favoring rT3. Further, hepatic T4-to-T3 conversion depends on adequate insulin and liver glycogen status—signals of plenty. Low carbohydrate intake combined with aggressive caloric restriction depletes hepatic glycogen and lowers insulin and leptin, which the liver interprets as famine, downshifting D1 accordingly.

Patients who try to “fix their metabolism” by fasting deeply or cutting carbs to the bone often feel colder and more fatigued. The intention is commendable, but timing and context matter. Rebuilding metabolic resilience requires calibrated nutrition, stress regulation, and progressive training that respects recovery. When the brain and liver sense safety and sufficiency, D1 conversion resumes.

How We Integrate Chiropractic Care With Internal Medicine and Functional Medicine

At our clinic, Dr. Cardenas and I work in concert:

• Medical oversight and safety: Dr. Cardenas ensures appropriate diagnostic workup, medication reconciliation, and safety monitoring. She collaborates with me to determine when medications are genuinely indicated, when de-prescribing might be considered, and how to transition safely.
• Functional diagnostics: I utilize a functional lens to interpret labs and physiologic patterns that often precede overt disease. We may evaluate inflammatory markers, lipid and glucose metabolism, liver function, micronutrient status, gut function, and, when clinically appropriate, thyroid panels that include free T3, free T4, TSH, reverse T3, thyroid antibodies, and markers of autoimmunity.
• Chiropractic and rehabilitative care: Through spinal and extremity adjustments, soft tissue techniques, and neuromotor retraining, we reduce nociceptive load, improve autonomic balance, enhance rib cage and diaphragmatic mechanics, and restore functional movement. These changes can reduce systemic stress signaling and facilitate better hepatic and gut physiology via improved respiration and mobility.
• Nutrition and lifestyle: We guide patients through nutritional strategies that lower inflammation, restore liver glycogen appropriately, and support gut repair. Sleep optimization, circadian alignment, and stress mastery techniques help normalize HPA-axis function.
• Personal injury integration: For patients with injury-related pain, we coordinate care that stabilizes tissues, reduces pain without reliance on medications whenever possible, and supports safe return to activity. Decreasing pain lowers stress hormones, which supports thyroid conversion.

The synergy of these elements creates a physiologic environment in which the body can resume efficient T3 production and utilization.

A Patient Journey: From Medication Dependence to Physiologic Restoration

When Jennifer came to me, she felt defeated. She was prescribed both levothyroxine and Synthroid, and over seven years her symptoms worsened: weight gain, cold intolerance, brain fog, low mood, and persistent fatigue. Her situation is emblematic of a common pattern: prescriptions escalate while the physiologic block to conversion remains unaddressed.

We began with a careful history and an exam, with Dr. Cardenas reviewing her medications and labs to ensure safety and rule out red flags. We explored potential drivers of inflammation, signs of hepatic overload, digestive function, and stress/load mismatch.

Key findings suggested:

• Inflammatory load from lifestyle and possible gut dysbiosis.
• Signs of hepatic stress consistent with impaired bile flow and early steatosis risk.
• HPA-axis strain from chronic stress and inconsistent caloric intake, including attempts at aggressive dieting.
• Musculoskeletal stress and restricted thoracic mechanics limiting optimal respiration.

Our plan did not begin with another prescription. Instead, we created a calming physiologic environment:

• We restored regular, adequate nutrition with sufficient carbohydrates to support liver glycogen while maintaining anti-inflammatory quality.
• We implemented a gut restoration protocol personalized to her symptoms and tolerance.
• Chiropractic adjustments and rib/diaphragm mobilization improved her breathing mechanics and reduced pain and tension.
• We introduced sleep and stress practices that down-regulate sympathetic tone.
• Under medical oversight, we monitored thyroid labs, including free T3 and reverse T3, and trended her response.

Over time, her cold intolerance receded, energy returned, cognition cleared, and her weight began to normalize. The key was not more T4. It was removing the physiologic brakes on D1 and D2 while quieting D3. With careful monitoring by Dr. Cardenas and a structured plan, we focused on physiology first.

Physiology Deep Dive: How The Body Tunes Thyroid Signal

To fully appreciate why our approach works, it helps to understand the enzymes and pathways that fine-tune thyroid hormone action.

• Deiodinase type 1 (D1): Predominantly hepatic and renal, D1 converts T4 to T3 and clears reverse T3. It is sensitive to inflammatory cytokines and nutrient/hormonal cues (insulin, leptin).
• Deiodinase type 2 (D2): Found in the CNS, pituitary, brown adipose tissue, and skeletal muscle. D2 helps tissues locally generate T3 for their own needs. Inflammation suppresses D2; cold exposure and certain adrenergic signals can enhance it.
• Deiodinase type 3 (D3): Inactivates T4 to reverse T3 and T3 to T2, reducing active thyroid signaling. D3 expression rises during illness, inflammation, tissue injury, and stress—an adaptive response that conserves energy.

Reverse T3 is not “bad” per se; it is a regulatory molecule. Problems arise when chronic stressors keep D3 elevated, turning short-term adaptation into long-term dysfunction. The T3 receptor environment becomes competitive: more rT3 relative to T3 means fewer receptors are available for active signaling, which manifests as hypothyroid-like symptoms.

Additionally, thyroid hormone action depends on transporters and cofactors:

• Transporters: MCT8, MCT10, and OATP family members help shuttle thyroid hormones into cells. Inflammation and oxidative stress can impair transporter expression.
• Cofactors: Selenium is critical for deiodinases; iron is required for thyroid peroxidase and oxygen transport; zinc supports receptor function and gene expression; vitamins A and D influence receptor activity and immune modulation.
• Mitochondria: T3 stimulates mitochondrial biogenesis and oxidative phosphorylation. When mitochondria are stressed (oxidative damage, nutrient deficits), the system may downshift thyroid signaling to prevent further injury.

Thus, a comprehensive plan must nourish cofactors, reduce oxidative and inflammatory stress, and restore insulin and leptin signals that reassure the liver and brain that the environment is safe.

How Integrative Chiropractic Care Supports Thyroid Physiology

Patients often ask how chiropractic care fits into thyroid and metabolic recovery. The connection is more direct than many realize.

• Autonomic balance: Persistent nociception and mechanical dysfunction can sustain sympathetic overactivity. Elevated sympathetic tone promotes cortisol release and reduces vagal activity, perpetuating HPA-axis strain. Chiropractic adjustments and soft tissue work decrease nociceptive drive, improving heart rate variability and parasympathetic tone in many patients. As sympathetic load decreases, cortisol dynamics normalize, enabling better D1 function.
• Respiratory mechanics: Thoracic spine mobility and rib cage function influence diaphragmatic excursion. Efficient breathing supports venous and lymphatic return, eases hepatic congestion, and improves oxygen delivery. Improved diaphragmatic motion supports visceral mobility, benefiting liver and gut circulation.
• Pain reduction: Pain amplifies inflammation. By alleviating mechanical contributors to pain, we reduce systemic cytokine signals that suppress deiodinases.
• Movement patterning: Restoring joint centration and neuromotor control makes physical activity more accessible and sustainable. Consistent, moderate activity improves insulin sensitivity and hepatic glycogen replenishment, supporting T4-to-T3 conversion.

In my day-to-day practice, I see that patients who receive targeted spinal and rib interventions often experience easier breathing, lower stress reactivity, and smoother energy—state changes that correlate with improved thyroid labs over time when paired with functional interventions.

The Liver-Gut Axis: The Conversion Superhighway

The liver and gut form a continuous, bidirectional pathway for hormone metabolism and recycling:

• In the liver, conjugation tags hormones for biliary excretion. In the gut, microbial enzymes deconjugate them, allowing reabsorption into portal blood.
• When bile is thick or sluggish, conjugated hormones may not flow properly. When microbiota are imbalanced, deconjugation is impaired, and hormones are lost in stool.
• LPS from Gram-negative bacteria translocating through a leaky gut engages TLR4 pathways, stimulating NF-?B and suppressing D1.

Therefore, when someone has hypothyroid-like symptoms with poor response to medication, I focus on the liver-gut axis early:

• Encourage daily movement and post-meal walking to enhance hepatic glucose uptake and improve insulin sensitivity.
• Optimize fiber intake to bind excess bile acids while feeding butyrate-producing microbes that support gut barrier integrity.
• Use nutrients such as phosphatidylcholine and bitters when appropriate to support bile quality and flow.
• Apply a staged gut protocol: eliminate irritants, restore digestive capacity, target dysbiosis, and repair the barrier.

As the liver-gut axis normalizes, patients frequently notice improved stool regularity, reduced bloating, steadier energy, and a return of normal thermal comfort—a signal that T3 action is rising.

What is Thyroid Dysfunction?- Video

Nutrition Strategy: Why “More Restriction” Often Backfires

Metabolic repair is not a starvation contest. While time-restricted eating and low-carbohydrate diets have therapeutic roles in specific contexts, applying them indiscriminately to a patient with suppressed D1 invites further downregulation.

Key principles I share with patients:

• Provide sufficient energy and carbohydrate to refill hepatic glycogen, particularly at dinner for overnight hepatic stability. This reassures the liver that famine is over.
• Favor anti-inflammatory patterns: colorful plants, high-quality proteins, omega-3 fats, and minimized refined sugars and seed oils. This lowers NF-?B activation and restores deiodinase function.
• Include micronutrient-dense foods: selenium-rich sources (e.g., Brazil nuts in appropriate quantities), zinc from meats and seeds, iron as indicated, iodine within safe dietary ranges, and vitamins A and D based on labs and clinical context.
• Respect circadian biology: consolidate eating windows earlier when feasible, dim lights at night, and get morning light exposure. Circadian alignment improves insulin sensitivity and HPA-axis rhythm.

We individualize these strategies. Some patients do well with moderate carbohydrates centered around activity. Others prefer a Mediterranean pattern emphasizing omega-3s and fiber. The key is consistent intake that signals safety and sufficiency, not deprivation.

Stress, Sleep, and The HPA Axis: Resetting the Master Rhythm

Chronic stress and sleep disruption are potent thyroid disruptors:

• Elevated nighttime cortisol and low morning cortisol correlate with fatigue, brain fog, and poor thermoregulation.
• Sleep deprivation increases inflammatory cytokines and insulin resistance, suppressing D1.

Our approach includes:

• Sleep hygiene: a consistent schedule, a cool, dark room, controlled light exposure, and prioritizing 7–9 hours.
• Breathwork and vagal practices: resonance breathing, extended exhales, and positional releases that promote parasympathetic dominance.
• Load management: balancing training with recovery, avoiding stacked stressors (e.g., fasting plus high-intensity training plus sleep loss).
• Social rhythm: consistent wake, meal, and activity timing to reinforce circadian cues.

As patients stabilize their HPA axis, they often report improved mood, mental clarity, and energy. Thyroid labs often trend toward improved free T3 and lower reverse T3, reflecting better conversion.

Clinical Observations From My Practice

Over decades in practice, I have observed recurring patterns that inform how I structure care. I share insights and case reflections through my clinical channels and professional profiles:

• Clinic: I regularly publish patient-centered education on integrative care, movement, and metabolic health at healthcoach.clinic/
• Professional profile: My background and ongoing work are found at www.linkedin.com/in/dralexjimenez/

Themes I repeatedly see:

• Patients with chronic musculoskeletal pain often carry elevated stress physiology; when we reduce pain through precise mechanical care, their metabolic and thyroid parameters improve.
• Reintroducing modest carbohydrates at dinner—combined with protein and fiber—often restores morning warmth and energy, signaling improved liver glycogen and D1 activity.
• Rib and thoracic adjustments that free the diaphragm correlate with patients reporting “I can finally take a full breath,” and within weeks, many describe feeling warmer with better stamina.
• Gut repair precedes sustainable fat loss in inflamed hypothyroid phenotypes. Forcing rapid weight loss worsens rT3 and sabotages long-term outcomes.

These observations align with the literature on inflammation, deiodinases, and the liver-gut-thyroid axis.

Safety, Testing, and When Medications Are Indicated

While many patients improve without escalating thyroid medications, there are clear scenarios for medical therapy:

• Overt hypothyroidism with elevated TSH and low free T4.
• Post-thyroidectomy or radioiodine ablation.
• Autoimmune thyroiditis with progressive gland failure.
• Pregnancy planning and pregnancy, where specific TSH targets are critical.

Under Dr. Cardenas’ guidance, we ensure patients receive the right medications when indicated, and we never withdraw therapy without appropriate monitoring. For patients on medications with persistent symptoms, we focus on resolving conversion blocks so therapy works as intended and, when appropriate, consider adjustments.

Our testing strategy is individualized:

• Thyroid panel: TSH, free T4, free T3, reverse T3 as clinically appropriate, thyroid antibodies (TPOAb, TgAb).
• Inflammation: hs-CRP, ferritin (contextualized), fibrinogen when appropriate.
• Metabolic: fasting insulin, glucose, lipid profile, liver enzymes, and ultrasound as indicated.
• Micronutrients: iron studies, zinc, selenium, vitamin D, and B12/folate as appropriate.
• Gut assessment: stool testing when clinically warranted.

The goal is to map physiology, not just chase numbers.

Building The Plan: Phased, Personalized, Evidence-Guided

I organize care into phases:

• Calm and stabilize: sleep, breathing mechanics, gentle movement, adequate nutrition, and initial chiropractic care to reduce pain and sympathetic tone.
• Restore conversion: replete micronutrients, optimize liver glycogen, support bile and liver function, and repair the gut barrier.
• Expand capacity: progressive training, resilience practices, and, if needed, targeted supplements to reinforce mitochondrial function.
• Maintain and thrive: periodic reassessment, habit consolidation, and stress-inoculation strategies.

Within each phase, I aim for small, meaningful wins that build momentum—warmer hands, better sleep, clearer thinking, and easier mornings. Those subjective markers often precede favorable lab shifts.

Why This Works: Aligning With Biology

Our approach succeeds because it respects the body’s logic. Inflammation and stress signal danger. The body prudently lowers energy expenditure by suppressing T3. When we remove danger signals—by reducing inflammation, normalizing HPA-axis tone, and ensuring energy sufficiency—the liver and peripheral tissues resume D1 and D2 activity. T3 rises where it counts: inside cells. Patients feel better not because we force the system with higher doses of T4, but because we create the conditions under which thyroid biology naturally works.

Practical Steps You Can Start Today

If you see yourself in Jennifer’s story, consider these steps, ideally under clinician guidance:

• Prioritize sleep: set a consistent bedtime and wake time; aim for 7–9 hours.
• Breathe better: practice slow, diaphragmatic breathing; consider mobility work for the thoracic spine and ribs.
• Eat to signal safety: include sufficient calories and a balanced macronutrient mix; add a modest carbohydrate portion at dinner to support liver glycogen.
• Reduce inflammatory load: favor whole, unprocessed foods; increase omega-3s; minimize refined sugars and excessive alcohol.
• Move daily: post-meal walks, gentle strength training, and mobility work reduce stress and improve insulin sensitivity.
• Heal the gut: remove triggers that bloat or flare symptoms; consider professional evaluation for dysbiosis and barrier support.

These are not quick fixes. They are durable habits that rewire physiology.

Our Collaborative Promise

At Injury Medical Clinic PA (Mission Plaza Injury Medical Clinic), Dr. Cardenas and I are committed to modern, evidence-based, and humane care. We combine the strengths of internal medicine, chiropractic care, functional medicine, and rehabilitation to help you reclaim your energy and clarity. If medication is needed, we prescribe it. If your body can recover without it, we show you how.

My message is simple: many people who feel hypothyroid do not need more thyroid medication. They need their biology to convert what they already have into what their cells can use. When we respect the body’s wisdom and address the real barriers—systemic inflammation, hepatic congestion, gut dysfunction, and stress overload—healing follows.

References

• The Deiodinases and the Control of Intracellular Thyroid Hormone Signaling (Bianco, A. C., & Kim, B. W., 2006). Endocrine Reviews.
• Nonalcoholic Fatty Liver Disease and Thyroid Dysfunction: An Interplay of Metabolism (Sinha, R. A., Yen, P. M., & Moeller, L. C., 2019). Endocrine.
• Thyroid Hormone Metabolism and the Gut Microbiota (Fugazzola, L. et al., 2014). Nature Reviews Endocrinology.
• Reverse T3 Physiology in Critical Illness and Chronic Stress (Van den Berghe, G., 2018). European Journal of Endocrinology.
• Inflammation and the Deiodinases: NF-?B, Cytokines, and Thyroid Hormone (Boelen, A. et al., 2008). Endocrinology.
• HPA Axis, Stress, and Thyroid Function: Clinical Implications (Fliers, E. et al., 2014). Journal of Clinical Endocrinology & Metabolism.
• Thyroid Hormone Transporters and Tissue-Specific Regulation (Visser, W. E., Friesema, E. C., & Visser, T. J., 2011). Endocrine Reviews.
• Nonalcoholic Fatty Liver Disease: Mechanisms of ER Stress and Metabolic Dysfunction (Hotamisligil, G. S., 2015). Nature Reviews Gastroenterology & Hepatology.
• Gut Barrier Function, LPS, and Systemic Inflammation (Cani, P. D., et al., 2008). International Journal of Obesity.
• Micronutrients and Thyroid Function: Selenium, Zinc, Iron, and Iodine (Zimmermann, M. B., 2011). Journal of Clinical Endocrinology & Metabolism.
• Cardiorespiratory Mechanics, Diaphragm Function, and Visceral Circulation (McCool, F. D., 2011). Journal of Applied Physiology.
• Autonomic Balance, Pain, and Stress Physiology (Tracey, K. J., 2015). Anesth Analg.
• Exercise, Insulin Sensitivity, and Hepatic Glycogen Dynamics (Bergström, J. et al., 2017). Applied Physiology, Nutrition, and Metabolism.
• Circadian Rhythms, Metabolism, and Endocrine Health (Cermakian, N., & Boivin, D. B., 2015). Nature Reviews Endocrinology.

SEO tags: thyroid conversion, reverse T3, deiodinase D1, D2, D3, NF-kB inflammation, gut dysbiosis, leaky gut LPS, fatty liver thyroid, bile flow, hepatic glycogen, HPA axis cortisol, integrative chiropractic, functional medicine thyroid, Dr. Alex Jimenez, Dr. Maria Guadalupe Cardenas, El Paso Injury Medical Clinic, Mission Plaza Injury Medical Clinic, hypothyroid symptoms, levothyroxine not working, evidence-based thyroid care