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Vitamin A supplementation of children under five who are at risk of VAD has been found to reduce all‐cause mortality by 12 to 24%. [29] Side effects of vitamin A supplements are rare. Vitamin A toxicity is a rare concern associated with high levels of vitamin A over prolonged periods of time.
In infants and young children, developing bones can become misshapen or deformed, causing rickets, a softening and weakening of bones. For adults, chronically low vitamin D may cause bones to ...
Micronutrient deficiencies are considered a public health problem worldwide. For over 30 years it has been estimated that more than two billion people of all ages are affected by this burden, [1] while a recently published study based on individual-level biomarker data estimated that there are 372 million children aged 5 years and younger, and 1.2 billion non-pregnant women of reproductive age ...
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 ...
The dermatitis occurs on areas of skin exposed to sunlight, such as backs of hands and neck. Niacin deficiency is a consequence of a diet low in both niacin and the amino acid tryptophan, a precursor for the vitamin. Low plasma tryptophan is a non-specific indicator, meaning it can have other causes.
Low dietary levels of Vitamin A can be worsened by infections that cause inflammation in the gastrointestinal tract, which prevent the body from fully absorbing Vitamin A available within digested food. Children in the United States have a recommended Vitamin A dietary allowance of at least 300 micrograms/day. [19]
The nutrition of children 5 years and younger depends strongly on the nutrition level of their mothers during pregnancy and breastfeeding. [24] Infants born to young mothers who are not fully developed are found to have low birth weights. [25] The level of maternal nutrition during pregnancy can affect a newborn baby's body size and composition ...
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