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Updated May 30, 2006

Western Research Laboratories of Tempe, Arizona USA manufactures Nature-Throid, the natural, hypoallergenic thyroid medication.

Nature-Throid is a tan, compressed tablet that contains T3 and T4 thyroid hormones in their correct ratio. Nature-Throid is measured in grains and is available in 1/2 Grain, 1 Grain, 2 Grain and 3 Grain. Nature-Throid differs from other desiccated thyroid because it contains hypoallergenic binding ingredients such as microcrystalline cellulose. Other natural thyroid medications use binders (and fillers) that may be allergenic, for example, cornstarch.

Like other prescription desiccated thyroid drugs, the hormones in Nature-Throid are derived from a natural porcine (pork) source as a by-product of meat manufacturing. Freshly excised, promptly frozen porcine glands are assayed in many ways to assure consistency.

Western Research Labs have been making natural thyroid medications since 1934.

Mary Shomon, About.com's Thyroid Guide since 1997, is a nationally-known patient advocate and best-selling author of 10 books on health, including "The Thyroid Diet: Manage Your Metabolism for Lasting Weight Loss," "Living Well With Hypothyroidism: What Your Doctor Doesn't Tell You...That You Need to Know," "Living Well With Graves' Disease and Hyperthyroidism," "Living Well With Autoimmune Disease," "Living Well With Chronic Fatigue Syndrome and Fibromyalgia," and the "Thyroid Guide to Fertility, Pregnancy and Breastfeeding Success." Click here for more information on Mary Shomon.

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