The bioavailability of (pro) vitamin A carotenoids and maximizing the contribution of homestead food production to combating vitamin A deficiency

International journal for vitamin and nutrition research. Internationale Zeitschrift für Vitamin- und Ernährungsforschung. Journal international de vitaminologie et de nutrition
Saskia de Pee, Martin W Bloem

Abstract

An estimated 100-140 million children worldwide suffer vitamin A deficiency disorders (VADD). Strategies for combating VADD are best used in combination because they serve particular target groups and none has full coverage. Homestead food production (HFP) can contribute to combating vitamin A deficiency directly, by increasing intake of vitamin A-rich foods, and indirectly through improving health and increasing income. By the late 1990s, conversion factors for estimating vitamin A obtained from plant foods were revised from 6:1 to 12:1 (microg beta-carotene:retinol activity equivalent) by the U.S. Institute of Medicine, and by West and colleagues to 21:1 for a mixed diet (12:1 for fruits and 26:1 for vegetables). Thus, plant foods contribute less to vitamin A intake than do other sources. HFP's contribution can be maximized by increasing the amount of vitamin A-rich food consumed, including animal source foods, choosing foods with higher vitamin A content, and improving bioavailability by adding fat, destroying the matrix of vegetables, and deworming. Since the early 1990s, HFP programs have also included nutrition education and were then generally successful in increasing vitamin A intake. However, impact on vitamin A status...Continue Reading

Citations

Nov 13, 2008·Journal of Nutritional Science and Vitaminology·M Angeles ZuletJ Alfredo Martínez
Nov 11, 2011·The American Journal of Clinical Nutrition·Lauren A WiseLynn Rosenberg
Oct 1, 2011·Molecular Nutrition & Food Research·Patrick Borel
Mar 29, 2011·Maternal & Child Nutrition·Sara E Wuehler, Djasndibye Nadjilem
Feb 8, 2011·Progress in Retinal and Eye Research·Eric L Lien, Billy R Hammond
Dec 27, 2017·Maternal & Child Nutrition·Jennifer N NielsenFanny Yago-Wienne
Nov 19, 2008·Social Cognitive and Affective Neuroscience·Roger D Newman-NorlundHarold Bekkering
Dec 24, 2008·FASEB Journal : Official Publication of the Federation of American Societies for Experimental Biology·W C LeungG Lietz
Nov 8, 2012·Journal of the Science of Food and Agriculture·Sunette M LaurieMaryke T Labuschagne
Dec 17, 2009·Food and Nutrition Bulletin·Kim F MichaelsenHenrik Friis
Sep 8, 2018·Current Developments in Nutrition·Elena T Broaddus-SheaKeith P West

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