Vitamin D: 4 Symptoms That Shouldn’t Be Ignored
The headline “Stop taking vitamin D immediately if you have these symptoms” is too broad. Vitamin D is important for bone and muscle health, but taking excessive amounts—usually from supplements rather than sunlight or food—can cause vitamin D toxicity (hypervitaminosis D).
Possible warning symptoms of excessive vitamin D include:
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Nausea, vomiting, or persistent loss of appetite
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Excessive thirst and unusually frequent urination
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Weakness, fatigue, or confusion
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Kidney-related symptoms, such as kidney stones or significant flank pain
These symptoms are mainly related to high calcium levels caused by excessive vitamin D, rather than ordinary vitamin D supplementation.
What should you do?
If you’re taking high-dose vitamin D and develop significant symptoms, contact a healthcare professional promptly. They may check your blood calcium and vitamin D levels and determine whether the supplement should be stopped or adjusted.
Don’t discontinue a medically prescribed vitamin D treatment simply because you have a nonspecific symptom. And don’t take high-dose vitamin D indefinitely without appropriate medical guidance.
Important: The recommended upper daily intake for most adults is 4,000 IU (100 micrograms) unless a healthcare professional recommends otherwise for a specific medical reason. More isn’t necessarily better.
