Answer by
JoanHatfield (37)
The daily needs for various age groups are: children 0-6 months 15 micrograms, 6-12 months 20 micrograms, ages 1-3 20 micrograms, ages 4-8 30 micrograms, ages 9-13 40 micrograms, and ages 14-19 55 micrograms. Adults age 19 and over need 55 micrograms. Women who are pregnant need 60 micrograms and women who are lactating need 70 micrograms.