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Prevalence of vitamin A deficiency, 1995-2005. Vitamin A deficiency (VAD) or hypovitaminosis A is a lack of vitamin A in blood and tissues. [1] It is common in poorer countries, especially among children and women of reproductive age, but is rarely seen in more developed countries. [1]
Vitamin A deficiency affects one third of children under age 5 around the world, [34] leading to 670,000 deaths and 250,000–500,000 cases of blindness. [35] Vitamin A supplementation has been shown to reduce all-cause mortality by 12 to 24%. [36]
The causes are vitamin A deficiency during pregnancy, followed by low transfer of vitamin A during lactation and infant/child diets low in vitamin A or β-carotene. [ 22 ] [ 19 ] The prevalence of pre-school age children who are blind due to vitamin A deficiency is lower than expected from incidence of new cases only because childhood vitamin A ...
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In the United States, overdose exposure to all formulations of "vitamins" (which includes multi-vitamin/mineral products) was reported by 62,562 individuals in 2004 with nearly 80% of these exposures in children under the age of 6, leading to 53 "major" life-threatening outcomes and 3 deaths (2 from vitamins D and E; 1 from a multivitamin with ...
For example, in the United States of America, one out of every six children is at risk of hunger. [citation needed] A study, based on 2005–2007 data from the U.S. Census Bureau and the Agriculture Department, shows that an estimated 3.5 million children under the age of five are at risk of hunger in the United States. [28]
Vitamin deficiency is the condition of a long ... afflicting 250,000 to 500,000 malnourished children in the developing ... The prevalence of VKDB is reported at 0.25 ...
The WHO reported that two out of five children that are stunted live in Southern Asia, however Africa is the only region where there is an increasing number of stunted children. [8] Common micronutrient deficiencies are iron, zinc, iodine, and vitamin A. Micronutrient deficiencies can cause an increase of illness due to a compromised immune ...