zinc rda for 12 year olds
The RDA of iodine for children aged 4 to 8 years is 90 mcg/day, and the RDA for boys and girls aged 9 to 13 years is 120 mcg/day. The intake recommendation for children in this younger age group was based on results of a balance study in eight-year-old children who did not have goiters (60) .he RDA for children ages 4 to 8 years is 400 mcg/day of Retinol Activity Equivalents (RAE) , which is 1,333 international units (IU); the RDA for both boys and girls ages 9 to 13 years is 600 mcg/day of RAE, which is equivalent to 2,000 IU. For information on vitamin A content in foods, see the article on Vitamin A.