Ingredient library
Mineral
Boron
Boron is a mineral in many foods. The NIH Office of Dietary Supplements publishes an upper limit of Adults 20 mg. Read 2026-08-03.
What is Boron?
"Boron is a mineral in many foods."
How much Boron does NIH publish?
| Life stage | Amount | Printed table |
|---|---|---|
| Adults | 20 mg | Upper Limit |
| Birth to 6 months | Not established | Upper Limit |
| Children 1–3 years | 3 mg | Upper Limit |
| Children 4–8 years | 6 mg | Upper Limit |
| Children 9–13 years | 11 mg | Upper Limit |
| Infants 7–12 months | Not established | Upper Limit |
| Pregnant and breastfeeding teens | 17 mg | Upper Limit |
| Pregnant and breastfeeding women | 20 mg | Upper Limit |
| Teens 14–18 years | 17 mg | 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 Boron?
- Adults: 20 mg
- Birth to 6 months: Not established
- Children 1–3 years: 3 mg
- Children 4–8 years: 6 mg
- Children 9–13 years: 11 mg
- Infants 7–12 months: Not established
- Pregnant and breastfeeding teens: 17 mg
- Pregnant and breastfeeding women: 20 mg
- Teens 14–18 years: 17 mg
Which foods contain Boron?
NIH's fact sheet for Boron 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. Boron — Consumer. Public domain (U.S. Government work). LAFYA read the sheet 2026-08-03.
Read the full fact sheet at NIH Office of Dietary SupplementsWhat LAFYA does not say about Boron
LAFYA publishes no claim that boron does anything in the body, because we cannot prove one.