Mineral

Iodine (Potassium Iodide)

Also known as: KI, Potassium iodide

Evidence

Essential for thyroid hormone synthesis. Deficiency common in many regions. Careful dosing needed.

Primary uses

Thyroid function
Hormone production
Metabolic support

How it works

Incorporated into T3 and T4
Essential for thyroid peroxidase

Dosage

Typical range: 150-300 mcg daily
Timing: Any
With food: Optional
Duration: Long-term safe at appropriate doses
Special populations: Pregnancy needs 220-290 mcg

Forms

Potassium iodide
Kelp
Lugol's

Safety

Common side effects

Metallic taste

Contraindications

Autonomous thyroid nodules

Evidence notes

Essential nutrient

Grade A: Multiple well-designed human trials support the main claims.

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.