If you’re asking about this headline, it refers to the possibility of vitamin D excess (vitamin D toxicity). Vitamin D is important, but taking very high doses—especially supplements taken unnecessarily for long periods—can raise calcium levels in the blood and cause problems.
Possible warning symptoms that should prompt you to stop taking vitamin D supplements and contact a healthcare professional include:
- Nausea, vomiting, or loss of appetite
- High calcium levels can irritate the digestive system.
- Unusual thirst and frequent urination
- Excess calcium can affect the kidneys and fluid balance.
- Weakness, fatigue, confusion, or feeling unusually unwell
- These can occur with significant calcium imbalance.
- Kidney-related symptoms (such as flank pain or signs of kidney stones)
- Excess vitamin D can increase the risk of calcium buildup in the kidneys.
A few important points:
- These symptoms are not proof that vitamin D is the cause; many conditions can produce similar symptoms.
- Vitamin D toxicity is rare and usually linked to excessive supplement doses, not normal sunlight exposure or recommended dietary amounts.
- Do not stop a prescribed vitamin D treatment without discussing it with your clinician, especially if it was prescribed for a deficiency or a medical condition.
If you tell me your vitamin D dose (IU per day), how long you’ve been taking it, and whether it was prescribed, I can help put the risk into context.
