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a condition produced by ingestion of excessive amounts of vitamins; symptom complexes are associated with excessive intake of vitamins A and D (hypervitaminosis A and hypervitaminosis D).
A condition resulting from the ingestion of an excessive amount of a vitamin preparation, symptoms varying according to the particular vitamin involved; serious effects may be caused by overdosage with fat-soluble vitamins, especially A or D, but more rarely with water-soluble vitamins.
hypervitaminosis/hy·per·vi·ta·min·o·sis/ (-vi″tah-mĭ-no´sis) a condition due to ingestion of an excess of one or more vitamins; symptom complexes are associated with excessive intake of vitamins A and D.hypervitaminot´ic
n. pl. hypervitamino·ses (-sēz)
Any of various abnormal conditions in which the physiological effect of a vitamin is produced to a pathological degree by excessive intake of the vitamin.
an abnormal condition resulting from excessive intake of toxic amounts (self-prescribed, usually from supplements) of one or more vitamins, especially over a long period. Serious effects may result from overdoses of fat-soluble vitamins A, D, E, or K, but adverse reactions are less likely with the water-soluble B and C vitamins, except when taken in megadoses. Compare avitaminosis. See also megadose, specific vitamins.
hypervitaminosisAny clinical condition caused by the ingestion of vitamins in extreme excess of physiologic requirements or pharmacologic doses. Hypervitaminosis is most commonly caused by excess consumption of fat-soluble vitamins, especially vitamins A and D (less commonly vitamins E and K), as they accumulate and remain stored in body fat; water-soluble vitamins B and C are readily excreted.
hypervitaminosisPopular nutrition A condition caused by the ingestion of vitamins in extreme excess of physiologic requirements, or pharmacologic doses; it most commonly is caused by excess consumption of fat-soluble vitamins–eg, vitamins A and D, as they accumulate in body fat; water-soluble vitamins B and C, are readily excreted. See Vitamins. Cf Pseudovitamins.
A condition resulting from the ingestion of an excessive amount of a vitamin preparation, with symptoms varying according to the particular vitamin.
hypervitaminosisOne of a number of disorders that can result from excessive intake of certain vitamins, especially vitamins A and D. Overdosage with vitamin D can cause deposition of calcium in arteries and other tissues and kidney failure.
Another name for vitamin toxicity.
Mentioned in: Vitamin Toxicity
Condition due to ingestion of excessive vitamin preparations; serious effects may be caused by overdosage with fat-soluble vitamins, especially A or D.
a condition produced by ingestion or injection of excessive amounts of vitamins; symptom complexes are associated with excessive intake of vitamins A and D.
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.
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.