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The Guardian - US
The Guardian - US
World
Hannah Harris Green

No evidence behind RFK Jr’s claim keto diet can cure schizophrenia, experts say

Secretary of Health and Human Services Robert F Kennedy Jr speaks at The Heritage Foundation on 9 February 2026 in Washington.
The secretary of health and human services, Robert F Kennedy Jr, speaks at The Heritage Foundation on 9 February 2026 in Washington. Photograph: Heather Diehl/Getty Images

Psychiatric researchers are pushing back against the claims by the health and human services secretary, Robert F Kennedy Jr, that a doctor at Harvard “cured schizophrenia using keto diets”, while also acknowledging that a carefully supervised ketogenic diet shows promise for a variety of mental health conditions.

Kennedy Jr’s statement probably referred to the Harvard psychiatrist Dr Christopher Palmer, who said he has “never once used the word ‘cure’ in my work. I have never claimed to have cured any mental illness, including schizophrenia,” but added: “I have talked about ketogenic diet being a very powerful treatment, even to the point of inducing remission of symptoms of schizophrenia.”

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