{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T17:25:09Z","timestamp":1777915509755,"version":"3.51.4"},"reference-count":22,"publisher":"SAGE Publications","issue":"3-4","license":[{"start":{"date-parts":[[2001,7,1]],"date-time":"2001-07-01T00:00:00Z","timestamp":993945600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutr Health"],"published-print":{"date-parts":[[2001,7]]},"abstract":"<jats:p>Vitamin A is an essential micronutrient throughout life. In areas of developing countries where vitamin A deficiency is endemic, an estimated 40% of the children are likely to be sub clinically deficient of the vitamin. Yet, the traditional view that preschool age children represent the main population at risk of vitamin A deficiency has been replaced by the growing awareness that sub clinical and even clinical vitamin A deficiency also occurs in women of reproductive age and infants less than 6 month of age. During the period of early foetal development the supply of vitamin A must be carefully managed to ensure that the developing foetus is exposed to neither too little not too much vitamin A because either condition can have teratogenic consequences. Towards the end of gestation, adequate maternal vitamin A status and dietary intakes are important to maximize the vitamin A transferred to the foetus in preparation for parturition and lactation. A review of the current knowledge and prospects for future research is presented.<\/jats:p>","DOI":"10.1177\/026010600101500413","type":"journal-article","created":{"date-parts":[[2012,1,10]],"date-time":"2012-01-10T19:28:16Z","timestamp":1326223696000},"page":"237-243","source":"Crossref","is-referenced-by-count":11,"title":["Vitamin a during Pregnancy"],"prefix":"10.1177","volume":"15","author":[{"given":"Ram","family":"Reifen","sequence":"first","affiliation":[{"name":"The School of Nutritional Sciences, The Hebrew University of Jerusalem, Israel"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kebreab","family":"Ghebremeskel","sequence":"additional","affiliation":[{"name":"Institute of Brain Chemistry and Human Nutrition, University of North London, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2001,7,1]]},"reference":[{"key":"bibr1-026010600101500413","volume-title":"The Retinoids","author":"Gudas L.J.","year":"1994"},{"key":"bibr2-026010600101500413","doi-asserted-by":"publisher","DOI":"10.1159\/000061912"},{"key":"bibr3-026010600101500413","doi-asserted-by":"publisher","DOI":"10.1016\/S0026-0495(98)90183-4"},{"key":"bibr4-026010600101500413","volume-title":"Prevention of childhood blindness.","author":"World Health Organization.","year":"1992"},{"key":"bibr5-026010600101500413","first-page":"500","volume":"52","author":"Sommer A.","year":"1994","journal-title":"Nutr. 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