PlainVitamins

Thyroid-120

by MBi Nutraceuticals · capsule · 180 capsules

  • On the market (NIH)
  • UPC 3 58301 23623 0
  • DSLD label 231899
  • Serving 1 capsule
  • 60 servings

Thyroid-120 by MBi Nutraceuticals lists 3 ingredients, 3 with an amount per serving of 1 capsule, such as 2 IU of vitamin E, 2 mg of pyridoxine hydrochloride and 120 mg of bovine thyroid tissue. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2020.

What is in Thyroid-120?

Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Thyroid-120: Supplement Facts rows against the market (DSLD label 231899, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Eas Vitamin E Succinate2 IU7%Vitamin E in Thyroid-120 against 6,459 products2 IU per serving; the middle half of products list 15 IU to 100 IU, the median 30 IU.2 IU

98% of 6,459 products listing vitamin E give more (median 30 IU).

Pyridoxine Hydrochloride2 mg100%Vitamin B6 in Thyroid-120 against 15,277 products2 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg2 mg

69% of 15,277 products listing vitamin B6 give more (median 6 mg).

Bovine Thyroid Tissue120 mgThyroid in Thyroid-120 against 60 products120 mg per serving; the middle half of products list 31.88 mg to 142.5 mg, the median 100 mg.120 mg

Higher than 55% of 60 products listing thyroid (median 100 mg).

Source: NIH ODS Dietary Supplement Label Database, label 231899 (entered August 23, 2020), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • 98% of the 6,459 products that print an amount of vitamin E list more than its 2 IU of vitamin E (median 30 IU).

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with Thyroid-120's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Use under the direction of your health care provider. Recommendation: Take one capsule per day following a meal or as directed by your health care professional.
Warnings
Warning: Keep this product out of the reach of children.
If tamper resistant seals are broken do not use this product. Caution: Do not exceed recommended dosage. If you experience symptoms of insomnia, heart palpitations, anxiety, or nervousness, discontinue use and consult your health care professional.

Source: label statements in DSLD label 231899.

What else is on the label?

Other ingredients: Rice Flour, Herbal activated base, Rice Flour extract, Silica.

How many labels does Thyroid-120 have?

One label is on file, entered on August 23, 2020.

  1. Label 231899 (current) Entered August 23, 2020 · on the market · 180 capsules · UPC 3 58301 23623 0

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names MBi Nutraceuticals (manufacturer), Lindon, UT. All MBi Nutraceuticals products.

Where next?