If you’re asking whether this warning is medically accurate: there isn’t a standard rule that everyone should immediately stop vitamin D because of four particular symptoms. Some symptoms can indicate vitamin D toxicity or another medical problem, but stopping treatment depends on the dose, duration, blood levels, and why you’re taking it.
Symptoms that can occur with excessive vitamin D leading to high calcium levels (hypercalcemia) include:
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Nausea or vomiting
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Excessive thirst or frequent urination
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Weakness, fatigue, or confusion
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Constipation or abdominal pain
Very high calcium levels can be serious and can affect the kidneys and heart. If you’re taking high-dose vitamin D and develop significant symptoms—especially confusion, persistent vomiting, severe weakness, dehydration, or abnormal heartbeat—seek medical care promptly rather than simply adjusting the dose yourself.
If you tell me your vitamin D dose (IU/day or IU/week), how long you’ve been taking it, and the four symptoms you’re referring to, I can explain what they may mean and whether the warning is supported by medical guidance.
