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Kate Wells

An eating disorders chatbot offered dieting advice, raising fears about AI in health

Tessa was a chatbot originally designed by researchers to help prevent eating disorders. The National Eating Disorders Association had hoped Tessa would be a resource for those seeking information, but the chatbot was taken down when artificial intelligence-related capabilities, added later on, caused the chatbot to provide weight loss advice. (Screengrab)

A few weeks ago, Sharon Maxwell heard the National Eating Disorders Association (NEDA) was shutting down its long-running national helpline and promoting a chatbot called Tessa as a "a meaningful prevention resource" for those struggling with eating disorders. She decided to try out the chatbot herself.

Maxwell, who is based in San Diego, had struggled for years with an eating disorder that began in childhood. She now works as a consultant in the eating disorder field. "Hi, Tessa," she typed into the online text box. "How do you support folks with eating disorders?"

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