Thorne

Iodine & Tyrosine

Name: Thorne Iodine & Tyrosine
Brand: Thorne

Product Quality

Overall evidence-based quality rating

How Product Quality is assessed

9.33Superior

Price

Container

60 servings

Serving

1 Capsule

Brand Quality

9.47

Why this score

Testing practices

Lot Tested
Third-Party Lab Tested
Transparent Batch-Specific COAs
ISO 17025 Lab

Testing coverage

Identity
Purity
Potency
Heavy Metals
Raw Ingredient Testing

Certifications

NSF Certified
NSF Certified for Sport

Manufacturing standards

cGMP Certified
Made in USA

Innovation

Clinically Studied Product

Active Ingredients

Iodine
225 mcg
Ingredient research · Iodine
Iodine is an essential mineral the thyroid uses to make hormones that regulate metabolism, growth, and development. Supplementation reliably prevents or corrects iodine deficiency and is especially important when needs rise during pregnancy for fetal brain development, but excess intake can also disturb thyroid function.
- Supports selected micronutrient and thyroid-status markers in iodine-deficient adults.
Top References
Iodine Supplementation of Mildly Iodine-Deficient Adults Lowers Thyroglobulin: A Randomized Controlled Trial.
Iodine Supplementation Decreases Hypercholesterolemia in Iodine-Deficient, Overweight Women: A Randomized Controlled Trial.
L-Tyrosine
500 mg
Ingredient research · L-Tyrosine
L-Tyrosine is an amino acid the body uses to make dopamine, norepinephrine, and thyroid hormones. Supplementation may help preserve attention, working memory, and mental performance during acute stressors such as sleep loss or cold exposure, but it is not a reliably effective everyday cognitive or mood enhancer.
- Supports cycling endurance during exercise in the heat.
Top References
Oral tyrosine supplementation improves exercise capacity in the heat

Ranking

Thyroid Support Products99%

Inactive Ingredients

10 Ideal

HypromelloseIdeal
Silicon DioxideIdeal

These statements have not been evaluated by the Food and Drug Administration. Any products and informational content displayed on this page are not intended to diagnose, treat, cure, or prevent any disease.