All supplements
Tier 3: Emerging Sciencetablet
Iodine
Potassium Iodide — 150 mcg
$10/month (30-day supply)
What it does
Iodine is essential for thyroid hormone production — the master regulator of metabolism, energy, and body temperature. Potassium iodide provides a stable, consistent dose. Deficiency is more common than people think, especially in those who avoid iodised salt, dairy, or seafood. Even mild deficiency can cause fatigue, weight gain, and cognitive sluggishness.
Key benefits
- Thyroid function
- Metabolism regulation
- Cognitive clarity
- Energy levels
The evidence
WHO estimates 2 billion people have inadequate iodine intake. Australian studies show re-emerging deficiency, particularly in older adults on restricted diets.
Important
Do not exceed 1,100 mcg/day. Those with Hashimoto's thyroiditis or Graves' disease should consult their doctor — excess iodine can worsen autoimmune thyroid conditions.