or sunlight. When it occurs, it is usually the result of taking very large amounts of vitamin D supplements for an extended period.
Excessive vitamin D can cause dangerously high calcium levels.
Possible symptoms include:
- nausea
- vomiting
- weakness
- confusion
- excessive thirst
- frequent urination
- dehydration
Very high vitamin D levels may lead to kidney stones and, in severe cases, kidney failure.
People taking high-dose vitamin D for a documented deficiency should follow the dose and monitoring plan recommended by their healthcare professional.
3. Vitamin C
Vitamin C is water-soluble, so excess
