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Everyone needs iron. Iron deficiency can lead to anemia, which can cause fatigue, difficulty concentrating, lowered immunity, red or inflamed tongue, and an inability to "stay warm". That being said, some people need more iron than others. Recommended dietary allowances vary by sex and age group. For example, a 21 year-old man may need 8 mg of iron a day, while a woman of the same age requires 18 mg per day. A pregnant 21 year-old woman would need even more iron... about 27 mg per day. Infants and toddlers, female teenagers, womena of childbearing age, pregnant women, people with renal failure, and those with intestinal absorption problems need more iron.
600 tons in a year
about 20 million ton year
Because girls will be getting their period and they need more iron to replace the blood they lose.
The average black woman makes around 26,000 dollars a year
Girls at 15 have hit puberty which means they have hit their periods and they need more blood as they are getting rid of so much everyday.
How much a woman should weigh cannot be solely determined by her age. You would also need to take into account her height, bone structure, body mass index, and activity level.
2.088 trillion (:
49 million tons.