TABLE 3.

RDA of Vitamin A for different age groups and its reported therapeutic doses used for measles, Ebola, supplementation in ocular manifestations of vitamin A deficiency and acne

Age group	RDA (in mcg) 150 , 151	RDA (in IU) (1 mcg = 3.33 IU) 150 , 151	Daily dose used in Ebola (in IU) (two doses on consecutive days) 113	Daily dose used in measles (in IU) (two doses on consecutive days, Day 0, 1) 100 , 101 , 108 , 109 , 110 , 111 Day 0, 1, 8, 42 93	Daily dose in ocular manifestation of vitamin A deficiency (in IU) 152 Day 0, 1, 14	Daily dose used in acne (in IU) (for 12 weeks) 153
Men	600	2000	200,000 (100 times RDA approx.)	200,000 (100 times RDA approx.)	200,000 (100 times RDA approx.)	500,000 (250 times RDA approx.)
Women	600	2000	200,000 (100 times RDA approx.)	200,000 (100 times RDA approx.)	200,000 (100 times RDA approx.)	300,000 (150 times RDA approx.)
Infants	350	1150		100,000 (100 times RDA approx.)	100,000 (100 times RDA approx.)	Not known
Children 1–6 years	400	1350		200,000 (150 times RDA approx.)	200,000 (150 times RDA approx.)	Not known
Children 6‐16 years	600	2000		200,000 (100 times RDA approx.)	200,000 (100 times RDA approx.)	Not known