Thyrosol by Metagenics — Ingredients, Evidence & Safety

🟢 100/100

This product looks safe

No ingredients exceed tolerable upper intake levels
78% of ingredients have research evidence

A Label Compliance Grade

Product Label

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Label Data

1 Tablet(s) Serving Size

180 Servings

Botanical with Nutrients Product Type

78% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin A

3000 IU (60% DV)

Vitamin D

400 IU (100% DV)

✅ Within RDA (0.7× RDA of 0.015 mg) 📚 604 studies (Tier A: 16, B: 251)

RDA 0.015mg This product: 0.01mg UL 0.1mg

Vitamin E

100 IU (333% DV)

📊 4.5× RDA — above typical dose (UL: 1000 mg) 📚 177 studies (Tier A: 3, B: 90)

RDA 15mg This product: 67.0mg UL 1000mg

Riboflavin

3 mg (176% DV)

✅ 2.3× RDA — within safe limits 📚 12 studies (Tier A: 0, B: 1)

RDA 1.3mg This product: 3mg

Niacin

4.5 mg (23% DV)

✅ Within RDA (0.3× RDA of 14 mg) 📚 193 studies (Tier A: 5, B: 63)

RDA 14mg This product: 4.5mg UL 35mg

Iodine

76 mcg (51% DV)

✅ Within RDA (0.5× RDA of 0.15 mg) 📚 243 studies (Tier A: 4, B: 133)

RDA 0.15mg This product: 0.076mg UL 1.1mg

Zinc

10 mg (67% DV)

✅ Within RDA (0.9× RDA of 11 mg) 📚 258 studies (Tier A: 6, B: 134)

RDA 11mg This product: 10mg UL 40mg

Selenium

150 mcg (214% DV)

✅ 2.7× RDA — within safe limits 📚 172 studies (Tier A: 0, B: 67)

RDA 0.055mg This product: 0.15mg UL 0.4mg

Rosemary Leaf Extract

79 mg

Other Ingredients

Microcrystalline Cellulose Croscarmellose Sodium Silica Stearic Acid Coating

Label Claims — Verification

❓ All Other

❓ Structure/Function

All Other (99% of products) Structure/Function (76% of products) Nutrient (58% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

DIRECTIONS: Take one tablet twice daily with food or as directed by your healthcare practitioner.

⚠️ Warnings & Precautions

WARNING: Excess vitamin A intake may be toxic and may increase the risk of birth defects. Pregnant women and women who may become pregnant should not exceed 5000 IU of preformed vitamin A (retinyl palmitate) per day.

CAUTION: Not recommended for pregnant or nursing women. If taking medication, consult your healthcare practitioner before use.

🧪 Formulation Notes

Formulated to Exclude: Wheat, gluten, soy, dairy products, nuts, tree nuts, fish, crustacean shellfish, colors, artificial sweeteners, and preservatives.

Additional Information

Genetic Potential Through Nutrition

Thyroid Support Formula

LTH01111

Lot# 0310144 04/12

PROD. THYR180

Product Details

UPC / SKU 7 55571 91023 3

DSLD Entry Date 2013-11-25

Product Type Botanical with Nutrients

Form Tablet or Pill

Brand Metagenics

DSLD ID 27844

Data Updated 2026-04-11

Research Evidence

337 Research Sources

54 Avg Quality Score

161 Meta Analysis

68 Systematic Review

51 Rct

48 Clinical Trial

2 Other

2 Regulatory Source

1 Narrative Review

1 Cochrane Review

1 Guideline

1 Openfda Safety

A Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age

Meta Analysis The Cochrane database of systematic reviews 2017

PubMed DOI Cochrane

A Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less

Meta Analysis The Cochrane database of systematic reviews 2011

PubMed DOI Cochrane

A Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection

Meta Analysis The Cochrane database of systematic reviews 2011

PubMed DOI Cochrane

A Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis

Meta Analysis BMJ (Clinical research ed.) 2011

PubMed DOI

A Fortification of staple foods with vitamin A for vitamin A deficiency

Systematic Review The Cochrane database of systematic reviews 2019

PubMed DOI Cochrane

A Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age

Narrative Review The Cochrane database of systematic reviews 2016

PubMed DOI Cochrane

A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa

Meta Analysis The Cochrane database of systematic reviews 2020

PubMed DOI

A Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials

Meta Analysis Journal of sport and health science 2023

PubMed DOI

A Food fortification with multiple micronutrients: impact on health outcomes in general population

Meta Analysis The Cochrane database of systematic reviews 2019

PubMed DOI

A Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age

Meta Analysis The Cochrane database of systematic reviews 2024

PubMed DOI

View all evidence for Vitamin A →