Thyroid extract


Thyroid extract comes from tissue in the animal thyroid gland. Some thyroid extract supplements contain dried and/or ground raw tissue from animal thyroid glands. Other thyroid extract supplements contain extract from animal thyroid glands. There are two major hormones produced by the thyroid gland: triiodothyronine (T3) and thyroxine (T4). Thyroid extract contains both hormones.



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Infertility. Early research shows that taking a specific thyroid extract (Thyranon) daily, at increasing doses, for three menstrual periods, improves the chance of becoming pregnant in women with fertility problems.

A heart rhythm disorder called Adams-Stokes syndrome

Stunted mental and physical growth (cretinism)

Enlarged thyroid gland (goiter)

A condition in which the immune system attacks the thyroid gland (Hashimoto’s disease)

Low thyroid hormone production (hypothyroidism)

Severely low thyroid hormone production (myxedema)

Thyroid cancer


CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider.

Side Effects

Thyroid extract is POSSIBLY UNSAFE when taken by mouth. The strength of the hormones in thyroid extract is not consistent. This makes proper dosing difficult. Using thyroid extract might cause thyroid hormone levels to rise too much and result in heart complications.

Additional information

One tablet

Thyroid extract 60mg

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