That headline is likely sensationalized. In general, people should not stop taking vitamin D solely because of a headline. However, excessively high vitamin D intake can cause vitamin D toxicity, which may lead to elevated calcium levels in the blood (hypercalcemia).
Some symptoms that can occur with vitamin D toxicity include:
- Nausea and vomiting
- Excessive thirst and frequent urination
- Weakness, fatigue, or confusion
- Abdominal pain or constipation
These symptoms are not specific to vitamin D toxicity and can have many other causes. They are also uncommon when vitamin D is taken at recommended doses.
What causes vitamin D toxicity?
Vitamin D toxicity is usually caused by:
- Taking very high-dose supplements for a prolonged period
- Errors in supplement dosing
- Certain medical conditions that affect vitamin D metabolism
It is not typically caused by normal sun exposure or standard dietary intake.
What should you do if you have these symptoms?
If you are taking vitamin D supplements and develop concerning symptoms—especially if you’re taking high doses—contact a healthcare professional. They may recommend blood tests to check:
- Vitamin D levels
- Calcium levels
- Kidney function
Don’t stop prescribed treatment without guidance
If a doctor has recommended vitamin D because of a deficiency or another medical condition, it’s generally best to discuss any concerns with them before discontinuing it.
Bottom line
There are real symptoms associated with excessive vitamin D intake, but headlines claiming that everyone should “stop taking vitamin D immediately” are misleading. The key issue is whether you’re taking an appropriate dose and whether there is evidence of toxicity, which is usually confirmed with medical evaluation and blood tests.
