Britt Marie Hermes (née Deegan; born 1984) is an American former naturopathic doctor who became a critic of naturopathy and alternative medicine.

[6][7] Hermes' writings deal with the education and practices of licensed naturopaths in North America,[6][8] and she is a noted opponent of alternative medicine.

[12] In 2006, she graduated from San Diego State University with a bachelor's degree in psychology (magna cum laude) and earned membership in the Phi Beta Kappa honor society.

[2][14] Prior to graduating from the N.D. program, Hermes travelled to Ghana and Nicaragua with other students from Bastyr to provide naturopathic care to rural communities.

"[19] In 2016, Hermes earned an MSc in biomedicine at the University of Kiel in Germany[2][5] specialising in the mammalian microbiome.

[24] After completing her PhD, Hermes became a post-doctoral researcher at the Max Plank Institute in the section of evolutionary medicine.

[2][4][14] She contends that accredited naturopathic programs do not adequately prepare students to become competent medical practitioners.

[2][14][29] Hermes argues that naturopaths are not able to recognize serious health conditions and treat according to the standard of care due to inadequate medical training.

[14][16] Hermes has described her experiences observing licensed naturopaths frequently misdiagnosing patients and providing inappropriate medical advice, such as advising against vaccinations and treating cancer with alternative methods.

[2][16] She has characterized naturopathic methods, especially ones using vitamins and supplements, as lacking adequate scientific evidence and based on exaggerated health claims.

[2][4] Hermes' views are consistent with and elaborate upon previous criticisms of naturopathic education and practice.

[7][30][31][28][32] Hermes believes that naturopathic doctors are misrepresenting their medical competency to the public and lawmakers.

[46] In a presentation a CSICon in Las Vegas in October, 2019, Hermes noted that the appeals deadline had passed and therefore Huber cannot sue her again for these points in Germany.