A 60-year-old man was hospitalized for three weeks after following dietary advice from the artificial intelligence chatbot ChatGPT. Seeking to eliminate salt from his diet, the man asked ChatGPT for a substitute and was advised to replace sodium chloride (table salt) with sodium bromide, a chemical commonly used in pesticides. After obtaining sodium bromide from the internet and consuming it for approximately three months, he developed bromism, a rare condition historically associated with sodium bromide poisoning. The man experienced severe symptoms including hallucinations and acute psychological effects, which ultimately led to his hospitalization. Medical experts and commentators have highlighted this case as a cautionary example of the risks of relying on AI for medical or dietary advice without professional consultation.