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  2. Vitamin A - Wikipedia

    en.wikipedia.org/wiki/Vitamin_A

    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 ...

  3. Vitamin A deficiency - Wikipedia

    en.wikipedia.org/wiki/Vitamin_A_Deficiency

    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.

  4. Nutrition and pregnancy - Wikipedia

    en.wikipedia.org/wiki/Nutrition_and_pregnancy

    [36] [34] During pregnancy the placenta concentrates B 12, so that newborn infants have a higher serum concentration than their mothers. [33] What the mother-to-be consumes during the pregnancy is more important than her liver tissue stores, as it is recently absorbed vitamin content that more effectively reaches the placenta.

  5. Birth defect - Wikipedia

    en.wikipedia.org/wiki/Birth_defect

    Exposure during weeks five through eight creates a 22% chance, while weeks 9–12, a 7% chance exists, followed by 6% if the exposure is during the 13th-16th weeks. Exposure during the first eight weeks of development can also lead to premature birth and fetal death. These numbers are calculated from immediate inspection of the infant after birth.

  6. Nearly a quarter of U.S. kids take vitamin supplements. Here ...

    www.aol.com/finance/nearly-quarter-u-kids...

    For these kids, she would suggest either a multivitamin or a selection of supplements, such as vitamin D, Omega-3 fatty acids, or vitamin C. Vitamins that are most likely to need supplementing ...

  7. Hypervitaminosis A - Wikipedia

    en.wikipedia.org/wiki/Hypervitaminosis_A

    Vitamin A toxicity is known to be an ancient phenomenon; fossilized skeletal remains of early humans suggest bone abnormalities may have been caused by hypervitaminosis A, [21] as observed in a fossilised leg bone of an individual of Homo erectus, which bears abnormalities similar to those observed in people suffering from an overdose of ...

  8. Why you should think twice before taking a daily multivitamin ...

    www.aol.com/news/why-think-twice-taking-daily...

    Americans aren't known for having the most balanced diets, and swallowing a pill to fill in our nutrition gaps is often touted as a sensible insurance policy. Besides, vitamins are essential.

  9. Do biotin supplements actually help with hair growth? Experts ...

    www.aol.com/biotin-supplements-actually-help...

    Biotin also plays an important role in supporting the structure of keratin, a protein that’s essential to the maintenance of healthy hair, skin and nails, Keen tells USA TODAY. During pregnancy ...

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