PlainVitamins

Thyrodine

by HoltraCeuticals · capsule · 90 capsules

  • On the market (NIH)
  • UPC 8 50036 28028 6
  • DSLD label 319571
  • Serving 1 capsule
  • 90 servings

Thyrodine by HoltraCeuticals lists 7 ingredients, 7 with an amount per serving of 1 capsule, such as 1,000 mcg RAE of vitamin A, 5 mg of riboflavin, 10 mg of vitamin B6 and 400 mcg of vitamin B12. Its current label entered the NIH Dietary Supplement Label Database on November 22, 2024.

What is in Thyrodine?

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).

Thyrodine: Supplement Facts rows against the market (DSLD label 319571, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Aas Retinol Palmitate1,000 mcg RAE111%
Riboflavin5 mg385%Riboflavin in Thyrodine against 9,824 products5 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg5 mg

Higher than 51% of 9,824 products listing riboflavin (median 4 mg).

Vitamin B6as Pyridoxine Hydrochloride10 mg588%Vitamin B6 in Thyrodine against 15,277 products10 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg10 mg

Higher than 55% of 15,277 products listing vitamin B6 (median 6 mg).

Vitamin B12as Methylcobalamin400 mcg16,667%Vitamin B12 in Thyrodine against 14,425 products400 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg400 mcg

Higher than 81% of 14,425 products listing vitamin B12 (median 36 mcg).

Iodideas Potassium Iodide4 mg3%

This amount is far outside what other labels list for iodine, or disagrees with the label's own %DV: possibly a unit or transcription slip in the database. Check the label image on DSLD.

Zincas Zinc Citrate Dihydrate5 mg45%Zinc in Thyrodine against 13,186 products5 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg5 mg

72% of 13,186 products listing zinc give more (median 11 mg).

Seleniumas Selenomethionine150 mcg273%Selenium in Thyrodine against 7,658 products150 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg150 mcg

Higher than 80% of 7,658 products listing selenium (median 55 mcg).

Source: NIH ODS Dietary Supplement Label Database, label 319571 (entered November 22, 2024), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

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.

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
Suggested use: Take one (1) capsule per day with 8 oz. of water.
Warnings
Warning: If you are under medical supervision, seek the advice of your physician or healthcare professional prior to use of this product.
Individuals with autoimmune conditions, depressive disorders or pregnant/lactating women should consult their physician prior to use.
Keep out of reach of children.
Do not use if safety seal is damaged or missing.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 319571.

What else is on the label?

Other ingredients: Hydroxypropyl Methylcellulose, Silicon Dioxide, Rice Flour.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GMP Made in USA.

How many labels does Thyrodine have?

One label is on file, entered on November 22, 2024.

  1. Label 319571 (current) Entered November 22, 2024 · on the market · 90 capsules · UPC 8 50036 28028 6

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

Who makes it?

The label names Holtorf Medical Group (distributor), El Segundo, CA. All HoltraCeuticals products.

Where next?