PlainVitamins

Thyro Complex

by Endo-met Laboratories · capsule · 90 capsules

  • On the market (NIH)
  • DSLD label 229024
  • Serving 1 capsule
  • 90 servings

Thyro Complex by Endo-met Laboratories lists 6 ingredients, 6 with an amount per serving of 1 capsule, such as 300 mg of kelp, 60 mg of bovine thyroid powder, 30 mg of porcine adrenal powder and 10 mg of bovine pituitary powder. Its current label entered the NIH Dietary Supplement Label Database on June 24, 2020.

What is in Thyro Complex?

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).

Thyro Complex: Supplement Facts rows against the market (DSLD label 229024, January 2026 release)
IngredientAmount% DVAmong products listing it
Kelpas Ascophyllum nodosum extract300 mgAscophyllum nodosum in Thyro Complex against 54 products300 mg per serving; the middle half of products list 50 mg to 300 mg, the median 100 mg.300 mg

Higher than 72% of 54 products listing ascophyllum nodosum (median 100 mg).

Iodineas Kelp extractIodine (Form: from Kelp extract)900 mcg600%Iodine in Thyro Complex against 6,382 products900 mcg per serving; the middle half of products list 75 mcg to 150 mcg, the median 150 mcg.DV 150 mcgUL 1,100 mcg900 mcg

Higher than 98% of 6,382 products listing iodine (median 150 mcg).

Bovine Thyroid powder60 mgThyroid in Thyro Complex against 60 products60 mg per serving; the middle half of products list 31.88 mg to 142.5 mg, the median 100 mg.60 mg

55% of 60 products listing thyroid give more (median 100 mg).

Porcine Adrenal powder30 mgAdrenals in Thyro Complex against 218 products30 mg per serving; the middle half of products list 30 mg to 200 mg, the median 100 mg.30 mg

73% of 218 products listing adrenals give more (median 100 mg).

Bovine Pituitary powder10 mgPituitary in Thyro Complex against 82 products10 mg per serving; the middle half of products list 10 mg to 30 mg, the median 17.5 mg.10 mg

57% of 82 products listing pituitary give more (median 17.5 mg).

Porcine Spleen powder10 mgSpleen in Thyro Complex against 106 products10 mg per serving; the middle half of products list 20 mg to 200 mg, the median 45 mg.10 mg

84% of 106 products listing spleen give more (median 45 mg).

Source: NIH ODS Dietary Supplement Label Database, label 229024 (entered June 24, 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:

  • Its 900 mcg of iodine is higher than 98% of the 6,382 iodine products that print an amount; 151 list more.
  • 84% of the 106 products that print an amount of spleen list more than its 10 mg of porcine spleen powder (filed by NIH under spleen) (median 45 mg).

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 Thyro Complex's, rare ingredients counting for more.

  • Thyro ComplexPL Progressive Laboratories · off the market 5 shared, 72% alike
  • Thyro ComplexProgressive Professional from Progressive Laboratories 5 shared, 72% alike
  • T-150XYMOGEN 5 shared, 44% alike
  • T-100AOR Advanced Orthomolecular Research Advanced 4 shared, 42% alike
  • TG 100 Natural GlandularsAllergy Research Group 3 shared, 39% alike
  • ThyroPlex For WomenLife Enhancement · off the market 3 shared, 39% alike

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: One capsule daily, or as directed by a physician. Am noon pm
Warnings
Notice: It is advisable to keep this and all supplements out of the reach of children.

Source: label statements in DSLD label 229024.

What else is on the label?

Other ingredients: Rice Flour, Gelatin, Magnesium Stearate.

How many labels does Thyro Complex have?

2 labels are on file under this name since June 24, 2020: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 229024 (current) Entered June 24, 2020 · on the market · 90 capsules
  2. Label 229023 Entered June 24, 2020 · on the market · 180 capsules

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

Who makes it?

The label names Endo-Met Laboratories, Inc. (distributor), Phoenix, AZ. All Endo-met Laboratories products.

Where next?