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Vitamin D: Harmless Nutritional Supplement or Serious Medication?
Robert Westhofen1,2, Gerhard Weidinger2, Peter Hoffmann2
1Department of Medicine, Faculty of Medicine and Dentistry Danube Private University Krems Austria.
Clinical Case Reports
|March 26, 2025
Summary
Excessive vitamin D intake can cause serious health issues. This case highlights the dangers of unsupervised high doses, leading to severe hypercalcemia and kidney injury, emphasizing the need for medical guidance.
Area of Science:
- Endocrinology
- Nephrology
- Gastroenterology
Background:
- Vitamin D is crucial for bone health and calcium homeostasis.
- However, excessive supplementation poses significant health risks.
Purpose of the Study:
- To report a case of severe complications arising from unsupervised high-dose vitamin D supplementation.
- To emphasize the importance of medical supervision in vitamin D therapy.
Main Methods:
- Case report of a 77-year-old male with excessive vitamin D intake.
- Clinical assessment of hypercalcemia, acute kidney injury, and gastrointestinal bleeding.
Main Results:
- The patient presented with severe hypercalcemia, acute kidney injury, and gastrointestinal bleeding.
- These complications were directly linked to unsupervised high-dose vitamin D supplementation.
Conclusions:
- Unsupervised, excessive vitamin D supplementation can lead to life-threatening conditions.
- Precise dosing, regular monitoring, and professional medical supervision are essential for safe vitamin D therapy.
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