A person can heal themselves of cancer solely by changing their diet.

The finding

What the evidence shows

Major health authorities say diet alone cannot cure cancer. The National Academies states that a healthy diet alone cannot cure cancer and that no evidence shows specific diets or foods can treat or cure an existing cancer. A 2018 JNCI study of 281 patients who used alternative medicine instead of standard treatment found they had a much higher risk of death than matched patients who had standard care. The speaker's mother's story is a personal account and cannot show that diet alone cured her cancer. Falsifier: a peer-reviewed trial or registry showing a treatable cancer cured by diet alone, with no conventional treatment, would overturn this verdict.