Ingredient library
Mineral
Iodine
Iodine is a mineral found in some foods. The NIH Office of Dietary Supplements publishes a recommended amount of Adults 150 mcg, and an upper limit of Adults 1,100 mcg. Read 2026-08-17.
What is Iodine?
"Iodine is a mineral found in some foods."
How much Iodine does NIH publish?
| Life stage | Amount | Printed table |
|---|---|---|
| Adults | 150 mcg | Recommended Amount |
| Birth to 6 months | 110 mcg | Recommended Amount |
| Breastfeeding teens and women | 290 mcg | Recommended Amount |
| Children 1–8 years | 90 mcg | Recommended Amount |
| Children 9–13 years | 120 mcg | Recommended Amount |
| Infants 7–12 months | 130 mcg | Recommended Amount |
| Pregnant teens and women | 220 mcg | Recommended Amount |
| Teens 14–18 years | 150 mcg | Recommended Amount |
| Adults | 1,100 mcg | Upper Limit |
| Birth to 12 months | Not established | Upper Limit |
| Children 1–3 years | 200 mcg | Upper Limit |
| Children 4–8 years | 300 mcg | Upper Limit |
| Children 9–13 years | 600 mcg | Upper Limit |
| Teens 14–18 years | 900 mcg | Upper Limit |
Children and teens
Rows for children and teens appear in the table above, in NIH's own wording.
Pregnancy and breastfeeding
Rows for pregnant and breastfeeding life stages appear in the table above, in NIH's own wording.
What upper limit does NIH publish for Iodine?
- Adults: 1,100 mcg
- Birth to 12 months: Not established
- Children 1–3 years: 200 mcg
- Children 4–8 years: 300 mcg
- Children 9–13 years: 600 mcg
- Teens 14–18 years: 900 mcg
Which foods contain Iodine?
NIH's fact sheet for Iodine carries no line we quote here about foods.
Where these numbers come from
Every quote and every amount on this page comes from National Institutes of Health, Office of Dietary Supplements. Iodine — Consumer. Public domain (U.S. Government work). LAFYA read the sheet 2026-08-17.
Read the full fact sheet at NIH Office of Dietary SupplementsWhat LAFYA does not say about Iodine
LAFYA publishes no claim that iodine does anything in the body, because we cannot prove one.