Iron has a recommended daily allowance (RDA) of 18mg and a safe upper limit (UL) of 45mg per day. Exceeding the upper limit may cause adverse health effects. Use NutriAudit to check if your supplement stack keeps Iron within safe limits.
| Region | Organization | RDA | Upper Limit (UL) | Unit |
|---|---|---|---|---|
| πΊπΈ United States | FDA | 18 | 45 | mg |
| πͺπΊ Europe | EFSA | 18 | 45 | mg |
| π¦πΊ Australia | TGA | 18 | 45 | mg |
| π¨π³ China | CNS | 20 | 42 | mg |
| π―π΅ Japan | MHLW | 10.5 | 50 | mg |
RDA = Recommended Daily Allowance (adequate intake for most adults). UL = Tolerable Upper Intake Level (maximum safe daily amount).
Vitamin C enhances iron absorption (positive interaction).
Taking together is beneficial.
Calcium can inhibit iron absorption when taken together.
Take at least 2 hours apart.
The safe upper limit (UL) for Iron is 45mg per day according to FDA. Exceeding this amount regularly may increase the risk of adverse effects.
The RDA for Iron is 18mg per day for most adults. This amount is sufficient to meet the needs of 97-98% of healthy individuals.
Yes, Iron has 3 known interactions with other supplements. Iron and zinc compete for absorption.
Check if your supplement stack keeps Iron within safe limits.
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