This headline is warning about vitamin D toxicity—which usually happens from taking excessive amounts of vitamin D supplements over time, rather than from ordinary sun exposure.
4 warning signs to know
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Nausea or vomiting — excess vitamin D can raise calcium levels in the blood.
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Excessive thirst and frequent urination — high calcium can affect the kidneys and cause these symptoms.
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Weakness or unusual fatigue — hypercalcemia can cause significant tiredness and muscle weakness.
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Confusion or other mental changes — severe hypercalcemia can affect the nervous system.
Other possible symptoms include constipation, poor appetite, dehydration, and kidney problems.
The important point
Vitamin D is essential, but more isn’t necessarily better. Toxicity is generally associated with excessive supplementation and can lead to dangerously high blood calcium levels. It is uncommon when vitamin D is taken at appropriate doses.
If someone is taking a high-dose vitamin D supplement and develops several of these symptoms, they should contact a healthcare professional rather than simply stopping or changing treatment based on an online article. A blood test can check vitamin D and calcium levels.
