Genetic testing could be the future of healthcare, but some doctors think companies like 23andMe might be doing more harm than good

Hollis Johnson/Business Insider

As millions of Americans sat down to Thanksgiving dinner, biomedical researcher James Hazel sent out a stark warning about the genetic-testing kits that he surmised would be a hot topic of conversation.

Most of them are neither safe nor private.

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Genetic testing could be the future of healthcare, but some doctors think companies like 23andMe might be doing more harm than good

Clinicians and advocates criticize the 23andMe approach to genetic testing, which they say prioritizes convenience over privacy and long-term health.