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  2. Iron deficiency - Wikipedia

    en.wikipedia.org/wiki/Iron_deficiency

    Iron deficiency, or sideropenia, is the state in which a body lacks enough iron to supply its needs. Iron is present in all cells in the human body and has several vital functions, such as carrying oxygen to the tissues from the lungs as a key component of the hemoglobin protein, acting as a transport medium for electrons within the cells in the form of cytochromes, and facilitating oxygen ...

  3. Dietary Reference Value - Wikipedia

    en.wikipedia.org/wiki/Dietary_Reference_Value

    RNI - Reference Nutrient Intake (95% of the population's requirement is met) EAR - Estimated Average Requirement (50% of the population's requirement is met) LRNI - Lower Recommended Nutritional Intake (5% of the population's requirement is met) RNI is not the same as RDA (Recommended Daily Allowance) or GDA, although they are often similar. [3]

  4. Iron supplement - Wikipedia

    en.wikipedia.org/wiki/Iron_supplement

    Because iron from plant sources is less easily absorbed than the heme-bound iron of animal sources, vegetarians and vegans should have a somewhat higher total daily iron intake than those who eat meat, fish or poultry. [42] [43] Taken after a meal, there are fewer side effects but there is also less absorption because of interaction and pH ...

  5. Reference Daily Intake - Wikipedia

    en.wikipedia.org/wiki/Reference_Daily_Intake

    The recommended adequate intake of sodium is 1,500 milligrams (3.9 g salt) per day, and people over 50 need even less." [13] The Daily Value for potassium, 4,700 mg per day, was based on a study of men who were given 14.6 g of sodium chloride per day and treated with potassium supplements until the frequency of salt sensitivity was reduced to 20%.

  6. Human nutrition - Wikipedia

    en.wikipedia.org/wiki/Human_nutrition

    The recommended daily intake of iron for both men and women is 8 mg, with an upper limit of 45 mg/day. According to the World Health Organization , hemoglobin levels below 12 g/dl in women and 13 mg/dl in men indicate anemia. [ 175 ]

  7. Dietary Reference Intake - Wikipedia

    en.wikipedia.org/wiki/Dietary_Reference_Intake

    Recommended Dietary Allowances (RDA), the daily dietary intake level of a nutrient considered sufficient by the Food and Nutrition Board of the Institute of Medicine to meet the requirements of 97.5% of healthy individuals in each life stage and sex group. The definition implies that the intake level would cause a harmful nutrient deficiency in ...

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  9. Iron-deficiency anemia - Wikipedia

    en.wikipedia.org/wiki/Iron-deficiency_anemia

    Iron-deficiency anemia is anemia caused by a lack of iron. [3] Anemia is defined as a decrease in the number of red blood cells or the amount of hemoglobin in the blood. [3] When onset is slow, symptoms are often vague such as feeling tired, weak, short of breath, or having decreased ability to exercise. [1]