health, and supplements can be beneficial when they’re actually needed.
But excessive supplementation can cause vitamin D toxicity and dangerously increase calcium levels.
Four warning patterns worth knowing are persistent nausea or vomiting, excessive thirst and frequent urination, unusual muscle weakness or fatigue, and confusion or dehydration.
These symptoms can have many other causes, so they don’t diagnose vitamin D toxicity by themselves.
If you’re taking high-dose vitamin D and develop concerning symptoms, speak with a healthcare professional. A simple blood test can help determine whether vitamin D or calcium
