Mineral
Iodine
An essential mineral required for thyroid function and cognitive development.
KÖGN Health grades Iodine as A (Strong evidence) and rates it 4.2 out of 5.
Last reviewed · June 2026
Primary effects
- Improved cognitive function
- Energy regulation
- Brain development
How it works
Supports thyroid hormone production, which regulates brain development and metabolism.
Overview
Iodine is critical for proper thyroid function, which in turn regulates metabolism and cognitive performance. Deficiency can lead to significant cognitive impairment, making it one of the most important nutrients for brain health. However, excessive intake can be harmful, so balance is essential.
Related ingredients
Graded entries that target the same cognitive goals.
Categories
Educational information, not medical advice. The evidence grade is KÖGN’s editorial assessment of published research, not a health claim. Speak to a qualified clinician before changing what you take.