Hypervitaminosis D is a state of vitamin D toxicity. The normal range for blood concentration is to nanograms per milliliter (ng/mL). Hypervitaminosis D is a condition that occurs after taking very high doses of vitamin D. Vitamin D toxicity may also be associated with hypercalcemia. To establish a diagnosis of hypervitaminosis D there has to be a clinical and bio- chemical.

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Hypervitaminosis D

Hypervitaminosis D is a condition that occurs after taking very high doses of vitamin D. The cause is excess intake of vitamin D.

The doses need to be very high, far above what most medical providers normally prescribe. There has been a lot of confusion about vitamin D supplementation. Higher doses may be needed for some hipervitaminosiss, such as those with vitamin D deficiency, hypoparathyroidism, and other conditions.


However, most people do not need more than 2, IU of vitamin D a day. An excess of vitamin D causes abnormally high levels of calcium in the blood hypercalcemia. This can severely damage the kidneys, soft tissues, and bones over time. Your provider will likely tell you to stop taking vitamin D. In severe cases, other treatment may be needed. Many combination vitamin supplements contain vitamin D, so check the labels of hipervitaminosiw the supplements you are taking for vitamin D content.

Meyler’s Side Effects of Drugs.

Rickets and hypervitaminosis D. Nelson Textbook of Pediatrics. For most people, vitamin D toxicity only occurs with vitamin D doses above 10, IU per day. Constipation Decreased appetite anorexia Dehydration Fatigue Frequent urination Irritability Muscle weakness Vomiting Excessive thirst polydipsia High blood pressure Passing large amounts of urine polyuria.

The health care provider will examine you and ask about your symptoms.

Tests that may be ordered include: Calcium in the blood Calcium in the urine 1,dihydroxy vitamin D levels Serum phosphorus X-ray of the bone. Recovery is expected, but permanent kidney damage can occur.


Health problems that can result from taking too much vitamin D over a long time include: Dehydration Hypercalcemia Kidney damage Kidney stones.

When to Contact a Medical Professional. Call your provider if: You or your child shows symptoms of hiperfitaminosis D and has been taking more vitamin D than the RDA You or your child shows symptoms and has been taking a prescription or over-the-counter form of vitamin D.

Hypervitaminosis D: MedlinePlus Medical Encyclopedia

To prevent this condition, pay careful attention to the correct vitamin D dose. Vitamin D Read more. Health Topics A-Z Read more.