PlainVitamins

Iod-Thy

by PureFormulas · capsule · 180 vegetarian capsules

  • Off the market since March 2023 (NIH)
  • UPC PUF1084
  • DSLD label 205636
  • Serving 1 vegetarian capsule
  • 180 servings

Iod-Thy by PureFormulas lists 4 ingredients, 4 with an amount per serving of 1 vegetarian capsule, such as 200 mg of L-tyrosine, 9.37 mg of iodine, 2.75 mg of potassium and 0.25 mcg of selenium. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2019.

What is in Iod-Thy?

Each row as the label prints it, per serving of 1 vegetarian 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).

Iod-Thy: Supplement Facts rows against the market (DSLD label 205636, January 2026 release)
IngredientAmount% DVAmong products listing it
L-Tyrosine200 mgTyrosine in Iod-Thy against 1,680 products200 mg per serving; the middle half of products list 150 mg to 989 mg, the median 500 mg.200 mg

69% of 1,680 products listing tyrosine give more (median 500 mg).

Iodineas Potassium IodideIodine (Form: as Potassium Iodide)9.37 mg6,247%Iodine in Iod-Thy against 6,382 products9,370 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg9,370 mcg

Higher than 99% of 6,382 products listing iodine (median 150 mcg). 8.5 times the adult UL a day.

Potassiumas Potassium IodidePotassium (Form: as Potassium Iodide)2.75 mg1%

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

Seleniumas L-SelenomethionineSelenium (Form: as L-Selenomethionine)0.25 mcg1%

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

Source: NIH ODS Dietary Supplement Label Database, label 205636 (entered August 23, 2019), 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:

  • At 1 serving a day, the most its directions give, the label lists 9,370 mcg of iodine, 8.5 times the adult Tolerable Upper Intake Level.

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 Iod-Thy'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
Suggested use: As a dietary supplement, take 1 capsule daily, or as directed by your health care practitioner.
Warnings
Warning: If pregnant or nursing, consult your healthcare practitioner before taking this product.
Tamper resistant package; do not use if outer seal is broken.
Keep out of reach of children.
Allergens and what it does not contain
This formulas does not contain any wheat, gluten, corn, protein, soy yeast, dairy products artificial colorings flavorings or preservatives.
Non-GMO
Storage
Storage: Store in a cool, dry place. Do not expose to heat, light or humidity. Close container tightly after each use.

Source: label statements in DSLD label 205636.

What else is on the label?

Other ingredients: Capsule, Maltodextrin, Magnesium Stearate, Calcium Phosphate.

How many labels does Iod-Thy have?

One label is on file, entered on August 23, 2019.

  1. Label 205636 (current) Entered August 23, 2019 · off the market March 27, 2023 · 180 vegetarian capsules · UPC PUF1084

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

Who makes it?

The label names PureFormulas (distributor), Miami, FL. All PureFormulas products.

Where next?