DISCUSSIONThis study indicated that

DISCUSSION
This study indicated that in anemic children with a marginal
vitamin A status, the mean apparent effectiveness of fruit in
improving vitamin A status was 50% (95% CI: 21%, 100%), and
of dark-green, leafy vegetables and carrots was 23% (8%, 46%),
of what has been assumed up until now. The current assumption
is that 6 mg dietary b-carotene provides 1 RE. According to our
results, a better estimate would be that 1 RE is provided by 12 mg
(95% CI: 6 mg, 29 mg) b-carotene from fruit, and by 26 mg (13
mg, 76 mg) b-carotene from dark-green, leafy vegetables and carrots. The study design and the assumptions underlying the estimation of apparent conversion factors need careful examination.