Oct 16, Most of the 3 to 4 grams of elemental iron in adults is in hemoglobin . Table 1 : Recommended Dietary Allowances (RDAs) for Iron .
The Recommended Dietary Allowance (RDA) for all age groups of men and The Tolerable Upper Intake Level (UL) for adults is 45 mg/day of iron, a level.
Feb 23, It provides an in-depth look at recommended intake of iron, Share on Pinterest A person's age and sex can affect the amount of iron they need in their diet. . Adults with a healthy digestive system have a very low risk of iron.