# When Somatic Delusions Meet Cyberchondria: An Unusual Case of Vitamin D Toxicity

## TL;DR

A patient with somatic delusions and cyberchondria developed vitamin D toxicity from self-treating a perceived illness using unverified online health advice.

## Contribution

Highlights the risks of unregulated online health content and its impact on patients with somatic delusions.

## Key findings

- Excessive online health searching led to a restrictive diet and vitamin D toxicity.
- The patient developed acute hypercalcemia and renal failure from self-supplementation.
- Building trust with a specialist can help address delusional beliefs and emotional stressors.

## Abstract

Patients with somatic delusional disorder are firmly convinced that something is wrong with their bodies and are often referred from one specialist to another without receiving a clear diagnosis. Some of these patients may turn to complementary or alternative medicine based on information found through online health searches. However, online health content is not regulated for quality, and much of it is inaccurate or potentially harmful, including fad diets and vitamin supplement advice from celebrity doctors. We present the case of a patient who believed he had Huntington’s disease and developed cyberchondria - compulsive online health searching - in an effort to treat his perceived condition. His distrust of conventional healthcare and reliance on unverified online sources led to a restrictive diet and excessive intake of dietary supplements, ultimately resulting in vitamin D toxicity, acute hypercalcemia, and renal failure. Managing patients with somatic delusions is challenging, as they often lack insight into their underlying psychiatric condition. A useful approach involves building a trusting relationship with a specialist familiar with the area of the somatic complaint. This relationship can help explore the patient’s symptoms and emotional stressors, eventually allowing for a gentle and gradual challenge to the delusional beliefs.