PlainVitamins

animal part or source

Thyroid supplements

Half of the 60 thyroid supplements in the NIH label database that print an amount list 100 mg or less per serving; the middle half list 31.88 mg to 142.5 mg (DSLD version 9.4.0, January 2026).

Products listing it
7460 print an amount; 14 list it inside a blend without an amount
Median per serving
100 mgmiddle half 31.88 mg to 142.5 mg

How much thyroid do supplements contain?

The median product lists 100 mg per serving. One in ten lists 8 mg or less, one in ten 200 mg or more. The amount printed most often is 150 mg (7 products).

Products by amount of thyroid per serving

60 products, log scale; extreme 0.2% at each end left out of the drawing.

Thyroid: products by amount per serving3 mg10 mg30 mg100 mg
Thyroid: products by amount per serving1 mg3 mg10 mg30 mg100 mg
Thyroid: products by amount per serving1 mg3 mg10 mg30 mg100 mg
Thyroid: products by amount per serving1 mg3 mg10 mg30 mg100 mg300 mg
Thyroid: products by amount per serving1 mg3 mg10 mg30 mg100 mg300 mg
The amounts printed most often
Amount per servingProductsFor example
150 mg7 ThyroPlex (Karuna); Thyrodex T-150 (NuMedica); Cardio Plus (Priority One Nutritional Supplements)
130 mg6 Thyroid (AB American Biologics); ReGenerZyme Thyroid (VerVita); Bovine Thyroid Health (Nutri-Meds)
120 mg5 Thyroid-120 (MBi Nutraceuticals); Thyroid Pituitary Plus (Vinco); Total Gland Plus (Priority One Nutritional Supplements)
8 mg4 Thyrosine Complex (Integrative Therapeutics); Metabolic Advantage (Nature's Way)
50 mg4 Thyroid Complex (TransFormation Professional Protocol); Thyro-T (LifeSeasons Therapeutics)
60 mg4 Thyro Complex (Endo-met Laboratories); Metabolic Complex (MBi Nutraceuticals); Thyro Complex (Progressive Professional from Progressive Laboratories)
100 mg4 NF Formulas Spectra 303-T (Integrative Therapeutics); MaX Thyroid (XYMOGEN); Spectra 303-T (Integrative Therapeutics)
5 mg3 Thyroid Complex (Vitamin World); Thyroid Complex (Puritan's Pride)
40 mg3 TG 100 Natural Glandulars (Allergy Research Group); Thyroid Natural Glandular (Allergy Research Group); Tri-40 (Progressive Professional from Progressive Laboratories)
200 mg3 Thyroxin-Free Thyroid Glandular 200 mg (Swanson Premium Brand); Thyroid Gland (Vinco)

Source: Supplement Facts rows of every product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0; amounts in one measure (weight).

Which products list the most thyroid?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

In which products and brands?

Products listing thyroid by DSLD product type

Thyroid by product typeOther Combinations41Non-Nutrient/Non-Botanical19
Thyroid by product typeOther Combinations41Non-Nutrient/Non-Botanical19
Thyroid by product typeOther Combinations41Non-Nutrient/Non-Botanical19
Thyroid by product typeOther Combinations41Non-Nutrient/Non-Botanical19
Thyroid by product typeOther Combinations41Non-Nutrient/Non-Botanical19

Brands listing it most: Priority One Nutritional Supplements (7), Integrative Therapeutics (4), MBi Nutraceuticals (4), Progressive Professional from Progressive Laboratories (3), Emerald Labs (3), Enzymatic Therapy (2), Life Enhancement (2), Allergy Research Group (2), LifeSeasons (2), Forefront Health (2).

Every product listing thyroid

74 products, A to Z by name (page 1 of 2), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

Where next?