Digestive & Immune

Thyroid Issues Treatment in Greenville, SC

Thyroid disorder treatment in Greenville, SC. Dr. Hendry goes beyond TSH to fully evaluate and optimize thyroid function naturally. Call (864) 365-6156.

What Is Thyroid Issues?

The thyroid gland produces hormones (T3 and T4) that regulate the metabolic rate of virtually every cell in the body — from heart rate and body temperature to brain function, digestion, and reproductive health. Both underactive (hypothyroidism) and overactive (hyperthyroidism) thyroid function cause significant, wide-ranging symptoms. The majority of thyroid disease in the U.S. involves autoimmune Hashimoto's thyroiditis (hypothyroidism) or Graves' disease (hyperthyroidism).

Common Symptoms

Hypothyroid: fatigue, weight gain, cold intolerance, constipation, brain fog, depression, dry skin, hair loss

Hyperthyroid: weight loss, heart palpitations, heat intolerance, anxiety, insomnia, tremors

Goiter — visible swelling at the base of the throat

Hair thinning and loss from the scalp and eyebrows

Menstrual irregularities and fertility problems

Elevated cholesterol (hypothyroidism is a reversible cause)

Mood disorders — depression with hypothyroid, anxiety with hyperthyroid

Puffy face and eyes (hypothyroid) or protruding eyes (Graves' disease)

Root Causes: A Functional Medicine Perspective

Thyroid dysfunction is most commonly autoimmune (Hashimoto's or Graves'), nutritional (iodine or selenium deficiency), stress-related (HPA-HPT axis crosstalk), or secondary to other hormonal imbalances. TSH elevation can be missed with standard lab ranges — a TSH of 3.0 mIU/L is 'normal' by lab standards but may cause significant symptoms in some patients. Low T3 conversion (euthyroid sick syndrome) — where TSH and T4 are normal but T3 is inadequate — is completely missed by TSH-only testing.

Medications, environmental toxins (fluoride, bromide, chlorine compete with iodine for thyroid receptor binding), and gut dysbiosis (20% of T4→T3 conversion occurs in the gut, dependent on specific gut bacteria) all affect thyroid function in ways that aren't captured by standard thyroid testing.

How We Treat Thyroid Issues at IHP

Dr. Hendry performs a comprehensive thyroid panel for every patient with suspected thyroid dysfunction: TSH, free T3, free T4, reverse T3, TPO antibodies, and thyroglobulin antibodies. This complete assessment identifies subclinical hypothyroidism, poor T4-T3 conversion, and Hashimoto's that standard TSH testing misses.

Functional medicine interventions include: optimizing selenium and iodine balance, reducing autoimmune burden through gut healing and gluten elimination (for Hashimoto's), supporting T4-T3 conversion through zinc, iron, and selenium adequacy, and managing stress to reduce the cortisol interference with thyroid signaling. Acupuncture supports thyroid function through neuroendocrine regulation and HPA axis normalization.

Dr. Hendry's Approach

Dr. Hendry uses clinical optimal ranges for thyroid values (TSH 1.0–2.0, free T3 upper third of range, free T4 mid-upper range) rather than standard lab normal ranges — the same values used by functional medicine thyroid specialists. This precision allows him to identify and address thyroid dysfunction that standard evaluation misses.

Treatments We Use for Thyroid Issues

Frequently Asked Questions About Thyroid Issues

Why do I still have thyroid symptoms even on medication?

Most thyroid medications provide T4 (levothyroxine/Synthroid) but require conversion to active T3 to have clinical effects. Poor converters — who have insufficient selenium, zinc, or excessive reverse T3 — don't get adequate T3 from T4-only medication. Free T3 testing identifies this and guides medication or supplemental adjustments.

Can the thyroid heal itself?

In early Hashimoto's, reducing autoimmune burden through gluten elimination, selenium, and gut healing can significantly reduce antibodies and protect remaining thyroid tissue. Subclinical hypothyroidism from non-autoimmune causes may normalize with nutritional and stress optimization.

Does stress affect the thyroid?

Yes. Cortisol (the stress hormone) inhibits the conversion of T4 to active T3 and suppresses TSH secretion, impairing thyroid function. Chronic stress is one of the most common contributors to functional hypothyroidism that standard testing misses.

Is there a relationship between thyroid and cholesterol?

Yes. Hypothyroidism is one of the most commonly missed reversible causes of elevated cholesterol. Thyroid hormone is essential for LDL receptor function — without adequate thyroid hormone, LDL clearance from the blood slows and cholesterol rises. Optimizing thyroid function often normalizes cholesterol without statins.

What dietary changes help thyroid function?

Supporting thyroid function nutritionally means ensuring adequate selenium (Brazil nuts, fish, poultry), iodine (sea vegetables, fish, eggs — in moderation), zinc (shellfish, red meat, pumpkin seeds), and iron. A gluten-free diet reduces Hashimoto's antibody load. Avoiding excessive raw goitrogenic vegetables (cruciferous vegetables, soy) is relevant when iodine status is already borderline.