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An excess of vitamin D causes abnormally high blood concentrations of calcium, which can cause overcalcification of the bones, soft tissues, heart and kidneys. In addition, hypertension can result. [2] Symptoms of vitamin D toxicity may include the following: Dehydration; Vomiting; Diarrhea; Decreased appetite; Irritability; Constipation ...
Vitamin D deficiency remains the main cause of rickets among young infants in most countries because breast milk is low in vitamin D, and darker skin, social customs, and climatic conditions can contribute to inadequate sun exposure.
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.
“Toxic levels of vitamin D can result in high blood calcium levels that may result in nausea, vomiting, ... The agency adds that one in 10 falls causes an injury to an older adult. Each year ...
Try adding foods rich in vitamin D or a vitamin D supplement. Although more evidence is needed, some early research indicates low levels of this nutrient in those with alopecia areata.
Hypervitaminosis D (vitamin D intoxication) Elevated 1,25(OH) 2 D (see calcitriol under Vitamin D) levels (e.g., sarcoidosis and other granulomatous diseases such as tuberculosis, berylliosis, histoplasmosis, Crohn's disease, and granulomatosis with polyangiitis) Idiopathic hypercalcaemia of infancy [23] Rebound hypercalcaemia after rhabdomyolysis
For a healthy individual, if calcium levels are high, the kidneys will decrease its production of calcitriol (active vitamin D) by reducing the hydroxylation of calcidiol (inactive vitamin D); lower calcitriol levels means a lower rate of calcium absorption in the small intestine, which eventually offsets the elevated calcium levels. [10]
In addition to its vitamin D content, trout is packed with high-quality protein and heart-healthy omega-3 fatty ... Wild-caught salmon tends to have higher levels of vitamin D than farmed salmon ...