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Symptoms appear several months after excessive doses of vitamin D are administered. A mutation of the CYP24A1 gene can lead to a reduction in the degradation of vitamin D and thus to vitamin toxicity without high oral intake (see Vitamin D: Excess). Symptoms of vitamin D toxicity may include the following: [2] Dehydration; Vomiting; Diarrhea
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.
In women, vitamin D receptors are expressed in the superficial layers of the urogenital organs. There is an association between vitamin D deficiency and a decline in sexual functions, including sexual desire, orgasm, and satisfaction in women, with symptom severity correlated with vitamin D serum concentration.
Both vitamin D2 and D3 are good, but “D3 has better bioavailablilty,” says Dr. Manson, meaning that it’s more easily used by your body. But that doesn’t mean any old brand will do.
Vitamin D3, aka cholecalciferol, is important for bone health and immune function. Experts discuss benefits, sources, risks and who needs a supplement.
How much vitamin D do you need? Recommended daily intake for adults up to age 70 is 600 IU and 800 IU for adults over 70, according to the NIH. Brighten adds, "It is also important to be getting ...
Black and white women aged 70–79 have the highest overall prevalence. [62] Secondary hyperparathyroidism is most commonly caused by chronic kidney disease and vitamin D deficiency. [63] The prevalence of vitamin D deficiency is about 50% of the world population and chronic kidney disease prevalence is 15% of the United States population. [51]
Pre-eclampsia: There has been an association between vitamin D deficiency and women who develop pre-eclampsia in pregnancy. The exact relationship of these conditions is not well understood. [17] Maternal vitamin D deficiency may affect the baby, causing overt bone disease from before birth and impairment of bone quality after birth. [9] [18]