Iodine is a moderate-risk supplementwith an RDA of 150 mcg and a safe upper limit (UL) of 1100 mcg per day according to FDA standards. MHLW lists a RDA of 130 mcg and a UL of 3000 mcg. Use NutriAudit to check if your supplement stack keeps this ingredient within safe limits.
Iodine sits in the Trace Minerals category. This page consolidates 5 regional standards, and the limits vary enough that you should not treat one region's rule as universal.
For this ingredient, the main task is usually not a binary yes/no question but checking the label dose, your total intake, and possible overlap with the rest of the stack.
Excess iodine can disrupt thyroid function (hypo- or hyperthyroid symptoms).
| Region | Organization | RDA | Upper Limit (UL) | Unit |
|---|---|---|---|---|
| πΊπΈ United States | FDA | 150 | 1100 | mcg |
| πͺπΊ Europe | EFSA | 150 | 1100 | mcg |
| π¦πΊ Australia | TGA | 150 | 1100 | mcg |
| π¨π³ China | CNS | 150 | 1100 | mcg |
| π―π΅ Japan | MHLW | 130 | 3000 | mcg |
RDA = Recommended Daily Allowance (adequate intake for most adults). UL = Tolerable Upper Intake Level (maximum safe daily amount).
First match your product label against the dose table above, then check whether the known interaction list includes anything in your current stack.
If you are taking multiple supplements, the safest approach is usually to audit the whole stack instead of judging a single bottle in isolation.
The safe upper limit (UL) for Iodine is 1100mcg per day according to FDA. Exceeding this amount regularly may increase the risk of adverse effects.
The RDA for Iodine is 150mcg per day for most adults. This amount is sufficient to meet the needs of 97-98% of healthy individuals.
Check if your supplement stack keeps Iodine within safe limits.
Audit My SupplementsDisclaimer: NutriAudit is a decision-support tool designed to help you review your supplement stack for potential duplicate, conflicting, or excessive ingredients. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making changes to your supplement routine, especially if you are pregnant, nursing, taking medications, or have a medical condition.
Based on reference standards from FDA, EFSA, TGA, and MHLW.