What it does: Iodine supports the production of thyroid hormones such as thyroxine (T4) and triiodothyronine (T3), which regulate metabolism, energy production, and support brain and nervous system development.
How it is used: Iodine is used in supplements for individuals seeking to maintain normal thyroid hormone levels, metabolic balance, and overall energy, especially in populations with low dietary iodine intake.
Natural sources and supplement forms: Iodine naturally occurs in seaweed, fish, shellfish, dairy products, and iodized salt. Supplement forms include potassium iodide, sodium iodide, and kelp extracts.
Why it appears in supplement formulas: Iodine is included to help ensure adequate intake for healthy thyroid function, metabolic support, and to prevent deficiency in people with limited access to iodine-rich foods.
What to know before use: High doses of iodine can disrupt thyroid activity; people with thyroid conditions or those on thyroid medication should consult a healthcare provider before use.
Interesting Fact
Iodine: The Ocean Mineral Behind Table Salt
Iodine is a trace mineral naturally found in seaweed and ocean fish, and it's also what makes iodized table salt a key source for many people. Your body needs iodine in small amounts to help make thyroid hormones, which support basic cell functions. Most diets get iodine from dairy, seafood, and foods prepared with iodized salt.
