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Vitamin D toxicity. Cholecalciferol (shown above) and ergocalciferol are the two major forms of vitamin D. Specialty. Endocrinology, toxicology. Vitamin D toxicity, or hypervitaminosis D, is the toxic state of an excess of vitamin D. The normal range for blood concentration in adults is 20 to 50 nanograms per milliliter (ng/mL).
Excessive consumption of vitamins. 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 ...
Megavitamin-B6 syndrome, also known as hypervitaminosis B6, vitamin B6 toxicity, and vitamin B6 excess, [ a ] is a medical condition characterized by adverse effects resulting from excessive intake of vitamin B 6. [ 1 ][ 2 ][ 22 ] Primarily affecting the nervous system, this syndrome manifests through symptoms such as peripheral sensory ...
A U.K. coroner is pushing the country’s Food Standards Agency to upgrade its labeling of certain dietary supplements, after a man died in part from vitamin D toxicity, or hypervitaminosis D.
Vitamin K2 is lauded for a number of important health benefits. But taking too much can be dangerous, health experts say. Vitamin K2 is essential to your health.
Toxicology. Hypervitaminosis A refers to the toxic effects of ingesting too much preformed vitamin A (retinyl esters, retinol, and retinal). Symptoms arise as a result of altered bone metabolism and altered metabolism of other fat-soluble vitamins. Hypervitaminosis A is believed to have occurred in early humans, and the problem has persisted ...
There’s no risk of consuming too much vitamin E from food — adults shouldn’t take more than 1,000 mg per day — but high intake of alpha-tocopherol, a form of vitamin E in supplements, can ...
Vitamin K is a family of structurally similar, fat-soluble vitamers found in foods and marketed as dietary supplements. [1] The human body requires vitamin K for post-synthesis modification of certain proteins that are required for blood coagulation ("K" from Danish koagulation, for "coagulation") or for controlling binding of calcium in bones and other tissues. [2]