A Dr. Anthony Komaroff, MD, Internal Medicine, answered. The innate immune system is first and best known for a family of white blood cells called phagocytes, which reside very close to the layer of epithelial cells that line much of the body's surface. Dr. Anthony Komaroff, MD, Internal Medicine, answered. The innate immune system is first and best known for a family of white blood cells called phagocytes, which reside very close to the layer of epithelial cells that line much of the body's surface.
The iron content of the body is highly conserved (Bothwell et al 1979). To achieve iron balance, adult men need to absorb about 1 mg/day and adult menstruating women about 1.5 mg/day, although this is highly variable. Towards the end of pregnancy, the absorption of 4-5 mg/day is necessary. Requirements are higher during periods of rapid growth in early childhood and adolescence.
However, men 19 years of age and older need only 8 mg of iron each day, a modest amount compared to pregnant women, who require 27 mg of daily iron.The Office of Dietary Supplements advises getting your daily iron from the food you eat rather than supplements.ompared to adult women, men generally require less iron during the course of their lifetimes. Male and female infants between the ages of seven months to one year of age need 11 mg of iron each day, states the University of Maryland Medical Center, or UMMC.