Personalized bioidentical hormone therapy for men and women — explore our services

BHRT Boost
Men & Women

Thyroid Imbalance

Thyroid dysfunction can mimic hormonal symptoms like fatigue, weight gain, and brain fog. Comprehensive testing reveals the full picture.

  • Unexplained weight gain or difficulty losing weight
  • Persistent fatigue and low energy
  • Cold intolerance or feeling chilly
  • Brain fog, sluggish thinking
  • Hair thinning or loss
Medically reviewed by Dr. Bruce J. Stratt, MD

What Is Thyroid Imbalance?

The thyroid gland produces hormones that regulate metabolism, energy production, body temperature, and dozens of other critical functions. When the thyroid underproduces (hypothyroidism) or overproduces (hyperthyroidism) these hormones, the effects can touch nearly every system in the body.

Hypothyroidism — the most common thyroid condition — is especially prevalent in women and frequently coexists with sex hormone imbalances. Many patients with thyroid dysfunction are told their levels are “normal” based on a single TSH test, when a more comprehensive panel would reveal subclinical issues affecting their quality of life.

Common Symptoms

Thyroid imbalance symptoms overlap significantly with sex hormone dysfunction, which is why comprehensive testing of both systems is essential:

  • Unexplained weight gain or inability to lose weight despite effort
  • Persistent fatigue that doesn’t improve with rest
  • Feeling cold when others are comfortable
  • Mental sluggishness, brain fog, or poor memory
  • Thinning hair, dry skin, and brittle nails
  • Digestive slowdown and constipation
  • Low mood, reduced motivation, or depressive symptoms
  • Elevated cholesterol despite healthy diet
  • Muscle aches and joint stiffness

What Causes It?

The most common cause of hypothyroidism is Hashimoto’s thyroiditis — an autoimmune condition where the immune system gradually attacks thyroid tissue. Other contributing factors include:

  • Nutrient deficiencies (iodine, selenium, zinc, iron)
  • Chronic stress and cortisol dysregulation
  • Environmental toxins and endocrine disruptors
  • Medications that affect thyroid function
  • Post-pregnancy hormonal shifts
  • Aging-related decline in thyroid output

Importantly, thyroid function and sex hormones are deeply interconnected. Estrogen influences thyroid-binding proteins, testosterone affects thyroid hormone metabolism, and cortisol competes with thyroid hormone at the cellular level. Treating one system without evaluating the other often leads to incomplete results.

How BHRT Can Help

At BHRT Boost, thyroid assessment goes far beyond a standard TSH test. Your comprehensive lab panel includes:

  • TSH, Free T3, Free T4, and Reverse T3
  • Thyroid antibodies (TPO, thyroglobulin)
  • Related markers including ferritin, vitamin D, and cortisol

When thyroid dysfunction is confirmed, treatment is integrated with your overall hormone optimization plan. This may include thyroid hormone support (T4, T3, or combination therapy) alongside bioidentical sex hormone therapy for a truly comprehensive approach.

What to Expect From Treatment

Once thyroid support is initiated, most patients notice gradual improvements in energy and mental clarity within the first two to four weeks. Weight management, mood, and metabolic function continue to improve over two to three months as thyroid levels stabilize.

Because thyroid optimization works best in concert with balanced sex hormones and healthy adrenal function, your provider monitors all three systems together — adjusting your protocol as each responds to treatment.

Start Your Personalized Hormone Optimization Plan

Book a consultation and take the first step toward renewed energy, clarity, and balance.