hypervitaminosis D (redirected from Vitamin D poisoning)

hypervitaminosis D,

n the toxic effects of ingesting large amounts of vitamin D. Manifestations include symptoms resulting from hypercalcemia, impairment of renal function, and metastatic calcification.

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hypervitaminosis

a condition produced by ingestion or injection of excessive amounts of vitamins; symptom complexes are associated with excessive intake of vitamins A and D.

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hypervitaminosis A

occurs mainly in cats, and is caused by a long-term diet consisting almost entirely of liver. Affected cats show neck pain and stiffness caused by a deforming cervical spondylosis. Other joints may be similarly affected. There is also hyperesthesia, irritability, anorexia, weight loss, and sometimes neurological deficits. Premature loss of teeth has also been reported.

hypervitaminosis D

caused by overdosing with vitamin D preparations as in milk fever prophylaxis and inappropriate treatment of disorders of dietary calcium and phosphorus, by errors in a diet mix, and oversupplementation of small puppies and kittens. Causes dystrophic soft tissue calcification, particularly nephrocalcinosis with subsequent renal failure. See also enzootic calcinosis.

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hypervitaminosis D

Vitamin D toxicity, see there