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  2. Hypervitaminosis A - Wikipedia

    en.wikipedia.org/wiki/Hypervitaminosis_A

    Hypervitaminosis A results from excessive intake of preformed vitamin A. Genetic variations in tolerance to vitamin A intake may occur, so the toxic dose will not be the same for everyone. [23] Children are particularly sensitive to vitamin A, with daily intakes of 1500 IU/kg body weight reportedly leading to toxicity. [21]

  3. Hypervitaminosis - Wikipedia

    en.wikipedia.org/wiki/Hypervitaminosis

    Hypervitaminosis is a condition of abnormally high storage levels of vitamins, which can lead to various symptoms as over excitement, irritability, or even toxicity. Specific medical names of the different conditions are derived from the given vitamin involved: an excess of vitamin A, for example, is called hypervitaminosis A.

  4. Vitamin A - Wikipedia

    en.wikipedia.org/wiki/Vitamin_A

    Vitamin A deficiency is "the leading cause of preventable childhood blindness", according to UNICEF. [10] [22] It also increases the risk of death from common childhood conditions, such as diarrhea. UNICEF regards addressing vitamin A deficiency as critical to reducing child mortality, the fourth of the United Nations' Millennium Development ...

  5. List of types of malnutrition - Wikipedia

    en.wikipedia.org/wiki/List_of_types_of_malnutrition

    Vitamin poisoning is the condition of overly high storage levels of vitamins, which can lead to toxic symptoms. The medical names of the different conditions are derived from the vitamin involved: an excess of vitamin A, for example, is called "hypervitaminosis A". Iron overload disorders are diseases caused by the overaccumulation of iron in ...

  6. Megavitamin-B6 syndrome - Wikipedia

    en.wikipedia.org/wiki/Megavitamin-B6_syndrome

    In experimental tests using animal subjects, neurotrophic factors, specifically neurotrophin-3, were shown to potentially reverse the neuropathy caused from the vitamin B 6 toxicity. [ 4 ] [ 18 ] With rats and mice, improvement has also been seen with 4-methylcatechol , a specific chicory extract, coffee and trigonelline .

  7. Retinoic acid - Wikipedia

    en.wikipedia.org/wiki/Retinoic_acid

    Retinoic acid administered as a drug (see tretinoin and alitretinoin) causes significant toxicity that is distinct from normal retinoid biology. [6] All-trans-retinoic acid is the major occurring retinoic acid, while isomers like 13-cis- and 9-cis-retinoic acid are also present in much lower levels. [7]

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  9. Vitamin A deficiency - Wikipedia

    en.wikipedia.org/wiki/Vitamin_A_Deficiency

    Vitamin A deficiency will often entail deficient retinol intake, resulting in a reduced number of T-cells and lymphocytes, leading to an inadequate immune response and consequently a greater susceptibility to infections. [1] In the presence of dietary deficiency of vitamin A, VAD and infections reciprocally aggravate each other. [1]