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.
How much iron do I need during pregnancy? As soon as your pregnancy begins, your body's iron requirement increases by 50 percent, from 18 milligrams a day to 27 mg a day. And once you give birth, you will still need additional iron; experts recommend 9 mg a day for nursing mothers.