Kelly Brogan is an American author of books on alternative medicine who has promoted conspiracy theories and misinformation about medical hypotheses.

Peter M. Heimlich stated that she appears not to have maintained certification with the American Board of Psychiatry and Neurology, according to the association's database.

She also defended the unsupported belief that a dysbiosis (imbalance) of intestinal bacteria causes depression; Brogan invites people to stop taking antidepressants and use the techniques and products from her website instead.

[6][8] Through her website, Brogan offers a subscription-only "lifestyle medicine" community space and access to self-improvement training resources.

She suggested the pandemic was a ploy by the United States government to force vaccination on people and usher in totalitarian measures.