Cited by 175Child Nutrition and Water AccessGlobal Maternal and Child HealthRetinoids in leukemia and cellular processes

Vitamin A deficiency disorders in children and women

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West, Keith P.·2003·Food and Nutrition Bulletin

Abstract

Vitamin A deficiency is an endemic nutrition problem throughout much of the developing world, especially affecting the health and survival of infants, young children, and pregnant and lactating women. These age and life-stage groups represent periods when both nutrition stress is high and diet likely to be chronically deficient in vitamin A. Approximately 127 million preschool-aged children and 7 million pregnant women are vitamin A deficient. Health consequences of vitamin A deficiency include mild to severe systemic effects on innate and acquired mechanisms of host resistance to infection and growth, increased burden of infectious morbidity, mild to severe (blinding) stages of xerophthalmia, and increased risk of mortality. These consequences are defined as vitamin A deficiency disorders (VADD). Globally, 4.4 million preschool children have xerophthalmia and 6 million mothers suffer night blindness during pregnancy. Both conditions are associated with increased risk of morbidity and mortality. While reductions of child mortality of 19–54% following vitamin A treatment have been widely reported, more recent work suggests that dosing newborns with vitamin A may, in some settings, lower infant mortality. Among women, one large trial has so far reported a ≥ 40% reduction in mortality related to pregnancy with weekly, low-dose vitamin A supplementation. Epidemiologic data on vitamin A deficiency disorders can be useful in planning, designing, and targeting interventions.

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  • Vitamin A deficiency has a direct impact on iron levels through metabolism and heme synthesis impairment, especially in children and pregnant women.

    “Its deficiency has a direct impact on iron levels through metabolism and heme synthesis impairment. This is especially important in children and pregnant women”

    From Vitamin A Update: Forms, Sources, Kinetics, Detection, Function, Deficiency, Therapeutic Use and Toxicity (2021) · cites this paper as [334]

    The Anemia section links vitamin A deficiency to anemia in children and lists impaired mobilization and transport of body iron as a plausible mechanism. The VADD in pregnant and lactating women section also reports an association with maternal anemia. Neither section identifies impaired heme synthesis as a mechanism, and the paper presents the mechanisms as plausible rather than established direct effects. Page numbers were not available in our copy. (LLM, conf=0.85)

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  • Vitamin A deficiency commonly results in ocular alterations such as xerophthalmia, night blindness, and Bitot's spots.

    “Vitamin A deficiency commonly results in ocular alterations such as xerophthalmia (dryness of the conjunctiva), night blindness, and the presence of Bitot's spots, which are keratinized plaques on the conjunctival surface [35].”
  • Advanced vitamin A deficiency can lead to keratomalacia and increased susceptibility to infectious diseases.

    “Advanced deficiency can lead to keratomalacia (corneal softening) and increased susceptibility to infectious diseases.”

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Authors
West, K. P.
Affiliations
Johns Hopkins University (US)
Corresponding author
West, Keith P.
Venue
Food and Nutrition Bulletin
Published
2003-01
Volume
24
Issue
4_suppl_1
Pages
S78-S90
ISSN
  • 0379-5721 (ISSN-L)
  • 1564-8265
OpenAlex
W2212452382
Cited by
175
References
95
Citations by year
2026: 2 · 2025: 5 · 2024: 6 · 2023: 15 · 2022: 11 · 2021: 11 · 2020: 17 · 2019: 9 · 2018: 8 · 2017: 8 · 2016: 3 · 2015: 5 · 2014: 9 · 2013: 11 · 2012: 7
FWCI
0.00
Type
journal article
Language
en
Open access
Locations
  • Food and Nutrition Bulletin (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • United States Agency for International Development (HRN-A-00-97-00015-00)
  • Bill and Melinda Gates Foundation (HRN-A-00-97-00015-00)
  • Johns Hopkins University (HRN-A-00-97-00015-00)
  • Johns Hopkins Bloomberg School of Public Health
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Child Nutrition and Water Access
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Global Maternal and Child Health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinoids in leukemia and cellular processes
Keywords
vitamin A deficiency, xerophthalmia, night blindness, preschool children, pregnant women, lactating women, infant mortality, child mortality, vitamin A supplementation, infectious morbidity, host resistance to infection, maternal mortality, developing countries
MeSH terms
Adolescent, Adult, Child, Child, Preschool, Developing Countries, Female, Growth, Humans, Infant, Infant, Newborn, Male, Night Blindness, Pregnancy, Pregnancy Complications, Reproduction, Vitamin A, Vitamin A Deficiency, Global Health, Xerophthalmia, Prevalence, Cost of Illness

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