A bodacious letter sent by the TEDx organizers says, “We feel it is important to reach out to all TEDx organizers on the topic of bad science and pseudoscience…” Red-flagged topics, those “topics that tend to attract pseudo-scientists” include “GMO food and anti-GMO foodists; Food as medicine, especially to treat a specific condition: Autism and ADHD, especially causes of and cures for autism.”

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