Brand: Priority One Nutritional Supplements

CapsuleNon-Nutrient/Non-BotanicalOn Market
Click to view full label

Net Contents

60 Capsule(s)

Serving Size

1 Capsule(s)

Servings Per Container

Not specified

Supplement Form

Capsule

Bar Code (UPC/SKU)

8 15354 02135 5

Product Version

1013-6242R3

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

1Active Ingredients

Single-ingredient formula listed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

1Dietary Attributes

Label states: Non-GMO.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Supplement Facts

Serving Size: 1 Capsule(s) · 1 per day

IngredientAmount Per Serving
Thyroid300 mg

Not Present

Other Ingredients

Rice ChelateSilicon DioxideCelluloseDicalcium PhosphateCapsule

Target Groups

Adult (18 - 50 Years)

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Recommendations: Take one (1) capsule daily, or as directed by your physician.

Warnings & Precautions

Precautions re: Pregnant or Nursing or Prescription Medications

Warning: May cause reaction with other thyroid medications.

Precautions re: All Other

If heart palpitations, excessive sweating, or hyperthyroidism occur discontinue use. Do not exceed four (4) capsules in a 24 hour period.

Precautions re: Children

Keep out of reach of children.

Storage

Storage

Keep container tightly closed, store in a cool, dry place.

Formulation

Formulation re: Does NOT Contain

Contains no preservatives.

Formulation re: Does NOT Contain

Non-GMO

FDA Statements

FDA Statement of Identity

A Dietary Supplement

FDA Disclaimer Statement

This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

Other Label Statements

General Statements: All Other Content

Bisphenol-A (BPA) & Phthalate Free

Seals/Symbols

GMP Certified

General Statements: All Other Content

Priority One Nutritional Supplements Inc since 1988

General Statements: All Other Content

For professional use only.

Manufacturer & Distributor

Distributor

Priority One Nutritional Supplements, Inc.

Manufacturer

First Priority Manufacturing, Inc.

2681 Delta Ring Road, Ferndale, WA, 98248

Market Reference

$28.00 – $116.60· 11 listings
  • Thyroid 300mg

    Priority One Vitamins4.7(116)
    $66.00
  • Thyroid Capsules 300mg Grass-Fed

    Priority One Vitamins4.8(45)
    $116.60
  • Priority One Thyroid Plus 120 Capsules

    Priority One Vitamins4.7(28)
    $111.10
  • Priority One Thyroid Plus 60 Capsules

    Priority One Vitamins4.9(24)
    $60.50
  • Priority One Thyroid 65mg 90 Caps

    Priority One Vitamins4.8(132)
    $40.00
  • Priority One Vitamins Thymus 300mg 90 Capsules - Glandular- Immune System Support*

    GoSupps.com4.7(3)
    $109.99
  • Armour Thyroid 300mg Tablets

    HealthWarehouse.com
    $93.00
  • Pure Encapsulations Thyroid Support Complex 60 Capsules

    Farmacopia4.6(121)
    $37.50

Where to Buy Locally

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

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  • RightNutri

    4.9 (78)

    Vitamin & Supplements Shop

    26 Queenstown Rd, London SW8 3RX

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    85 Great Portland St, London W1W 7LT

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    71-75 Shelton St, London WC2H 9JQ

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    72 Regent St., London W1B 4EN

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    5.0 (1)

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    3rd Floor, 207 Regent St., London W1B 3HH

  • Indi Supplements

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    Vitamin & Supplements Shop

    27 Old Gloucester St, London WC1N 3AF

  • Arbor Vitamins

    5.0 (13)

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    128 City Rd, London EC1V 2NX

Research & Studies

  • Thyroid and Nutrition: Interplay, Clinical Implications, and Public Health Perspectives

    S Selim, H Lona, MM Rana… - Bangladesh Journal of …, 2026 - journals.lww.com

    … thyroid disorders, dietary and lifestyle strategies for optimizing thyroid function, and priority … Paradoxically, USI success introduces the risk of iodine excess (UIC > 300 µg/L), which can …

    2026
  • The effect of multiple nutritional factors on hypothyroidism-a systemic review

    I Chaberska, A Feruś, J Lipska, M Turek… - Quality in Sport, 2024 - apcz.umk.pl

    … vitamin D supplementation on thyroid hormones, lipid profiles, measures of obesity and serum irisin in women with subclinical hypothyroidism … with supplementation higher than 300 μg I/…

    20246 citations
  • Contemporary challenges to iodine status and nutrition: the role of foods, dietary recommendations, fortification and supplementation

    M Bouga, MEJ Lean, E Combet - Proceedings of the Nutrition Society, 2018 - cambridge.org

    … , we did not find differences in thyroid function in women with … The elimination of ID and related disorders is a priority for the … Daily potassium iodide supplement (300 µg/d) in the first …

    201881 citations
  • Nutritional epidemiology and thyroid hormone metabolism

    J Vanderpas - Annu. Rev. Nutr., 2006 - annualreviews.org

    … increases of thyroid volumes observed by echography alone are a health priority in the … ) consuming 10 mg perchlorate daily (ie, 300 times greater than the potential exposure from …

    2006164 citations
  • Beneficial Impact of Nutritional and Supplemental Changes on the Thyroid Gland Health

    Y Danailova, I Sazdova, Z Mitova… - Proceedings of the …, 2024 - proceedings.bas.bg

    … , a few hours before or after taking medication; magnesium citrate – 300 mg; the following nutritional supplements were recommended to optimize thyroid function – L-tyrosine – 250 mg; …

    2024
  • Thyroid, diet, and alternative approaches

    D Larsen, S Singh, M Brito - The Journal of Clinical …, 2022 - academic.oup.com

    … Vitamin B12 is also taken by many patients for thyroid health. The recommended daily allowance of vitamin … of vitamin B12 deficiency in patients with autoimmune thyroid disease (AITD) …

    202246 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2020-09-25. DSLD Label ID: 236919. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.