Hypervitaminosis D is a condition that occurs after taking excessive doses of vitamin D.
An excess of vitamin D causes abnormally high levels of calcium in the blood, which can eventually severely damage the bones, soft tissues, and kidneys. It is almost always caused by forms of vitamin D that require a doctor's prescription.
Decreased appetite (anorexia)
Exams and Tests
- Excess calcium in the blood (hypercalcemia)
- Excess calcium in the urine (hypercalciuria)
- Excessive thirst (polydipsia)
High blood pressure
- Passing large amounts of urine (polyuria)
Tests to confirm the diagnosis:
- 1,25-dihydroxy vitamin D levels
25-hydroxy vitamin D levels
X-ray of the bone
Stop takingÂ vitamin D. Consult your physician. In severe cases, other treatment may be necessary.
Recovery is expected.
- Kidney damage
- Kidney stones
When to Contact a Medical Professional
Call your health care provider if:
- You or your child shows symptoms of hypervitaminosis D and has been taking more vitamin D than the recommended daily allowance
- You or your child shows symptoms and has been taking a prescription form of vitamin D
To prevent this condition, pay careful attention to the correct vitamin D dose.
Vitamin D toxicity