Thyroid Extracts

Uses

Thyroid extracts are thyroid extracts derived from the thyroid glands of usually bovine (beef) sources.

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3 Stars Reliable and relatively consistent scientific data showing a substantial health benefit.

2 Stars Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.

1 Star For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support.

This supplement has been used in connection with the following health conditions:

Used for	Why
1 Star Hypothyroidism Refer to label instructions	Thyroid extract is used by some doctors as an alternative to synthetic thyroid hormones. One doctor reported that thyroid extract worked better than standard thyroid preparations for many of his patients with hypothyroidism. Desiccated thyroid, also called (e.g., Armour Thyroid), is used by some doctors as an alternative to synthetic thyroid hormones (such as thyroxine [Synthroid or other brand names]) for people with hypothyroidism. Thyroid extract contains two biologically active hormones (thyroxine and triiodothyronine), whereas the most commonly prescribed thyroid-hormone preparations contain only thyroxine. One study has shown that the combination of the two hormones contained in desiccated thyroid is more effective than thyroxine alone for those with hypothyroidism. One doctor reported that thyroid extract worked better than standard thyroid preparations for many of his patients with hypothyroidism. Glandular thyroid products, which are available from health food stores, have had most of the thyroid hormone removed and would therefore not be expected to be effective for people with hypothyroidism. Intact desiccated thyroid is available only by prescription. Hypothyroidism sufferers who want to use desiccated thyroid must first consult with a physician.

Used for

Why

1 Star

Hypothyroidism

Refer to label instructions

Thyroid extract is used by some doctors as an alternative to synthetic thyroid hormones. One doctor reported that thyroid extract worked better than standard thyroid preparations for many of his patients with hypothyroidism.

Desiccated thyroid, also called (e.g., Armour Thyroid), is used by some doctors as an alternative to synthetic thyroid hormones (such as thyroxine [Synthroid or other brand names]) for people with hypothyroidism. Thyroid extract contains two biologically active hormones (thyroxine and triiodothyronine), whereas the most commonly prescribed thyroid-hormone preparations contain only thyroxine. One study has shown that the combination of the two hormones contained in desiccated thyroid is more effective than thyroxine alone for those with hypothyroidism. One doctor reported that thyroid extract worked better than standard thyroid preparations for many of his patients with hypothyroidism. Glandular thyroid products, which are available from health food stores, have had most of the thyroid hormone removed and would therefore not be expected to be effective for people with hypothyroidism. Intact desiccated thyroid is available only by prescription. Hypothyroidism sufferers who want to use desiccated thyroid must first consult with a physician.

How It Works

How to Use It

The recommended intake depends on the concentration, method of preparation, and quality of the thyroid extract. Follow the manufacturer’s recommendation on the label.

Where to Find It

Thyroid extracts are available as nutritional supplements in capsules and tablets.

Possible Deficiencies

As thyroid extract is not an essential nutrient, therefore, no deficiency state exists.

Interactions

Interactions with Supplements, Foods, & Other Compounds

At the time of writing, there were no well-known supplement or food interactions with this supplement.

Interactions with Medicines

As of the last update, we found no reported interactions between this supplement and medicines. It is possible that unknown interactions exist. If you take medication, always discuss the potential risks and benefits of adding a new supplement with your doctor or pharmacist.

The Drug-Nutrient Interactions table may not include every possible interaction. Taking medicines with meals, on an empty stomach, or with alcohol may influence their effects. For details, refer to the manufacturers’ package information as these are not covered in this table. If you take medications, always discuss the potential risks and benefits of adding a supplement with your doctor or pharmacist.

Side Effects

No side effects or adverse reactions have been reported. However, people taking prescription thyroid hormones should consult their doctor before using non-prescription thyroid extracts.