Vitamin D is necessary for humans to be healthy, but too much can cause toxicity. The Mayo Foundation for Medical Education and Research advises that following guidelines for vitamin supplements, and eating a well-rounded diet, keep Vitamin D below the toxic levels.
Causes
Vitamin D toxicity will only occur from excessive amounts Vitamin D. This typically occurs from an overuse of supplements. It is unlikely for someone get enough Vitamin D from diet alone to . (See References 1)
Symptoms
The symptoms of Vitamin D toxicity are caused by hypercalcemia, an excess of calcium. Symptoms include nausea, vomiting and anorexia. These symptoms are followed by nervousness, weakness and then renal failure. (See References 1)
Misdiagnosis
Vitamin D toxicity is often given as a wrong diagnosis. In these cases, the patient actually has a vitamin D hypersensitivity syndrome, because of primary hyperparathyroidism. (See References 2)
Prevention
To prevent Vitamin D toxicity take only the daily recommended dosage, typically 5 to 15 mcg. (See Resources 1) Excessive amounts can build up over time and lead to dangerous levels.
Treatment
The treatment for Vitamin D toxicity is to restrict the intake of calcium, fluid hydration and medication. Any use of Vitamin D supplements will be stopped. For severe cases hospitalization will be required. (See References 1)
Tags: Vitamin toxicity, cause toxicity, Vitamin toxicity