Mineral
Iodine (as Fermented Iodine Glycinate)
Also known as: Iodine glycinate, Chelated iodine, Iodide
Iodine is an essential mineral critical for thyroid hormone synthesis and metabolic regulation. Glycinate chelation may enhance absorption compared to traditional iodide forms.
Primary uses
- Thyroid hormone synthesis
- Metabolic regulation
- Cognitive development
- Reproductive health
How it works
- Incorporation into thyroid hormones (T3, T4)
- Cofactor for thyroid peroxidase
- Regulation of cellular metabolism
Dosage
- Typical range
- 75-150 mcg daily
- Timing
- Consistent daily timing recommended
- With food
- Can be taken with or without food
- Duration
- Ongoing supplementation recommended in iodine-depleted regions or for those at risk
- Special populations
- RDA: 150 mcg (adults), 220 mcg (pregnant), 290 mcg (lactating), 90 mcg (children 4-8). Higher doses may be needed in pregnancy.
Forms
- Iodine glycinate (chelated form)· 70/100
Safety
Common side effects
- Generally well-tolerated at recommended doses
Contraindications
- Hyperthyroidism or thyroiditis (unless medically supervised)
- Iodine allergy
Products containing Iodine (as Fermented Iodine Glycinate)
Top-scoring supplements in our catalog that list Iodine (as Fermented Iodine Glycinate) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Iodine deficiency is a well-established public health concern with strong evidence for supplementation. RCT evidence supports iodine's role in thyroid function and cognitive development.
Grade A: Multiple well-designed human trials support the main claims.
Related in Mineral
Check a full stack
Formulate's free interaction checker lets you paste in any combination of supplements and medications at once — every pairing flags severity, timing, and cited evidence.
Open the checkerMedical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.