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

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.