Dietary Reference Intake Zinc

Reference intakes dosages for zinc as well as other nutrients are provided in the dietary reference intakes dris developed by the food and nutrition board at the institute of medicine.

Dietary reference intake zinc. The dris represent the most current scientific knowledge on nutrient needs of healthy populations. Dri is a term for a set of reference intakes that are used to plan and assess the nutrient intakes of healthy people. The dietary reference intakes dris are developed and published by the institute of medicine iom. Dietary reference intakes for zinc.

Dri is the general term for a set of reference values used for planning and assessing nutrient. In adults severe zinc deficiency can cause hair loss diarrhea skin sores loss of appetite and weight loss. Intestinal losses however correlate strongly to absorbed zinc. Although urinary zinc losses decrease markedly with severe deficiency baer king 1984 across a dietary intake range of 4 25 mg day urinary zinc and non intestinal losses in general appears to be largely independent of dietary intake.

Table 11 4 dietary reference intakes for zinc. We compared the sources of the data the concepts and methods used by the 4 expert groups to set the physiological requirements for absorbed zinc the dietary zinc requirements termed estimated and or average requirements recommended dietary allowances or recommended nutrient intakes or population reference intakes and tolerable upper intake levels for selected age sex and life stage. For adults pregnant and lactating women the recommended intake values for zinc range from 7 mg day to 16 mg day depending on sex and dietary phytate intake. Please note that individual requirements may be higher or lower than the dris.

Intake recommendations for zinc and other nutrients are provided in the dietary reference intakes dris developed by the food and nutrition board fnb at the institute of medicine of the national academies formerly national academy of sciences. The reference values for lactating women take into account the zinc loss via breast milk. Pris were derived from the zinc requirement of individuals with a body weight at the 97 5th percentile for reference weights for men and women and range from 7 5 to 12 7 mg day for women and from 9 4 to 16 3 mg day for men.