all-trans-retinol/Finding
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No detected effect on blood haemoglobin concentration
Very limitedEvidence strength: very limited. Human evidence with major recorded weaknesses, or non-human, uncontrolled or unverified evidence.FindingNull resultreplicated ×1“The baseline prevalence of vitamin A deficiency was low (6.7%) and no sustained increase in hemoglobin was seen with weekly vitamin A (-0.07 g dl(-1) (-0.38, 0.25)).”
Quoted verbatim from The effect of weekly iron and vitamin A supplementation on hemoglobin levels and iron status in adolescent schoolgirls in western Kenya.. - Study
- RCT
- Dose
- 25 000 IU vitamin A weekly
- Population
- Adolescent schoolgirls aged 12-18 years in public primary schools in Kisumu, western Kenya, in a double-blind placebo-controlled factorial trial with weekly iron (120 mg elemental iron) crossed with weekly vitamin A; vitamin A deficiency was uncommon at baseline
The effect of weekly iron and vitamin A supplementation on hemoglobin levels and iron status in adolescent schoolgirls in western Kenya.2009PMID:17928808Permalink
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To cite this finding: https://catalystproject.ai/e/01M5N2ZPRCQ38DFKNK1QKTDAH6