The explanation â the true one (if ever found) â does matter. It may matter to future whales, potentially, especially if we learn that 52 Hertz (âAliceâ, as in Cooper) got the way s/he did because of us, because of something we humans were/are doing.
Because of this health risk with high iron intake, the Institute of Medicine has set a Tolerable Upper Intake Level, or UL, for iron. This is the highest amount of iron that can be taken daily with a low risk for developing overload. For males and females over 14 years old, the UL for iron is 45 milligrams per day.
The recommended daily intake for elemental iron varies depending on gender and age, ranging from 8mg/day to 18mg/day (27mg/day during pregnancy). The higher range of intake may be difficult to maintain, especially for vegetarians, who need to take in more iron because less is absorbed from nonmeat sources.