PlainVitamins

Thyro-Gen

by DC · tablet or pill · 60 tablets

  • On the market (NIH)
  • DSLD label 266000
  • Serving 1 tablet
  • 60 servings

Thyro-Gen by DC lists 10 ingredients, 10 with an amount per serving of 1 tablet, such as 12.5 mg of thiamine, 25 mg of riboflavin, 25 mg of niacin and 450 mcg of iodine. Its current label entered the NIH Dietary Supplement Label Database on April 11, 2022.

What is in Thyro-Gen?

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

Thyro-Gen: Supplement Facts rows against the market (DSLD label 266000, January 2026 release)
IngredientAmount% DVAmong products listing it
Thiamineas Thiamine HydrochlorideThiamin (Form: as Thiamine Hydrochloride)12.5 mg833%Thiamin in Thyro-Gen against 9,830 products12.5 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg12.5 mg

Higher than 65% of 9,830 products listing thiamin (median 5 mg). Per day at the most servings: 25 mg.

Riboflavin25 mg1,471%Riboflavin in Thyro-Gen against 9,824 products25 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg25 mg

Higher than 75% of 9,824 products listing riboflavin (median 4 mg). Per day at the most servings: 50 mg.

Niacinas NiacinamideNiacin (Form: as Niacinamide)25 mg125%Niacin in Thyro-Gen against 12,413 products25 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg25 mg

Higher than 56% of 12,413 products listing niacin (median 20 mg). Per day at the most servings: 50 mg. 1.4 times the adult UL a day.

Iodineas Potassium IodideIodine (Form: as Potassium Iodide)450 mcg300%Iodine in Thyro-Gen against 6,382 products450 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg450 mcg

Higher than 97% of 6,382 products listing iodine (median 150 mcg). Per day at the most servings: 900 mcg.

Magnesiumas Magnesium Aspartate, Magnesium OxideMagnesium (Form: as Magnesium Aspartate, & Magnesium Oxide)100 mg25%Magnesium in Thyro-Gen against 14,003 products100 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg100 mg

Higher than 51% of 14,003 products listing magnesium (median 86 mg). Per day at the most servings: 200 mg.

Zincas Zinc PicolinateZinc (Form: as Zinc Picolinate)5 mg33%Zinc in Thyro-Gen 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). Per day at the most servings: 10 mg.

Manganeseas Manganese CitrateManganese (Form: as Manganese Citrate)5 mg250%Manganese in Thyro-Gen against 7,016 products5 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg5 mg

Higher than 80% of 7,016 products listing manganese (median 2 mg). Per day at the most servings: 10 mg.

Potassiumas Potassium CitratePotassium (Form: as Potassium Citrate)99 mg3%Potassium in Thyro-Gen against 11,614 products99 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg99 mg

49% of 11,614 products listing potassium give more (median 99 mg). Per day at the most servings: 198 mg.

L-Aspartic Acid100 mgAspartic Acid in Thyro-Gen against 377 products100 mg per serving; the middle half of products list 106 mg to 1,846 mg, the median 337 mg.100 mg

76% of 377 products listing aspartic acid give more (median 337 mg). Per day at the most servings: 200 mg.

L-Tyrosine225 mgTyrosine in Thyro-Gen against 1,680 products225 mg per serving; the middle half of products list 150 mg to 989 mg, the median 500 mg.225 mg

69% of 1,680 products listing tyrosine give more (median 500 mg). Per day at the most servings: 450 mg.

Source: NIH ODS Dietary Supplement Label Database, label 266000 (entered April 11, 2022), 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?

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 2 servings a day, the most its directions give, the label lists 50 mg of niacin, 1.4 times the adult Tolerable Upper Intake Level.
  • Its 450 mcg of iodine is higher than 97% of the 6,382 iodine products that print an amount; 189 list more.

The NIH database records 2 servings 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?

2 products list the very same ingredients; the nearest amounts come first.

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
Directions: As a dietary supplement, take 1 tablet twice daily. For best utilization take between meals.
Warnings
Tamper Evident: Do not use this product if imprinted foil seal under cap is broken or missing.
Keep out of reach of children.
Caution: If you are pregnant or nursing do not take this product.
Allergens and what it does not contain
Gluten free
Storage
Keep tightly closed. Store at room temperature: 59 degrees - 86 degrees F (15 degrees to 30 degrees C).

Source: label statements in DSLD label 266000.

What else is on the label?

Other ingredients: Calcium Carbonate, Vegetable Cellulose, Vegetable Stearic Acid, Vegetable Magnesium Stearate, Silica, Vegetable Magnesium Silicate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Quali Pure.

How many labels does Thyro-Gen have?

3 labels are on file under this name since April 22, 2021: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 266000 (current) Entered April 11, 2022 · on the market · 60 tablets
  2. Label 265999 Entered April 11, 2022 · on the market · 60 tablets
  3. Label 244809 Entered April 22, 2021 · off the market August 24, 2021 · 60 tablets

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

Who makes it?

The label names Dee Cee Laboratories, Inc. (manufacturer), White House, TN. All DC products.

Where next?