Anthony William

Anthony William Coviello, known publicly as Anthony William or the Medical Medium, is an American author and wellness personality. He claims that at age four he heard a voice he calls the 'Spirit of Compassion' that told him to announce to his family that his grandmother had symptomless lung cancer — a claim he says proved correct. He has stated that this spirit has communicated medical information to him ever since and that he has no medical training of any kind.

William rose to public prominence through social media and the publication of his first book, Medical Medium, in 2015. The book and its sequels became New York Times bestsellers, sold millions of copies globally, and were endorsed by celebrities including Gwyneth Paltrow's Goop platform. His celery juice protocol — drinking 16 ounces of fresh celery juice daily — became a global wellness trend in 2018 and 2019.

William's claims are characterised by invented scientific terminology. He coined the term 'cluster salts' to describe supposed healing compounds in celery that do not exist in biochemistry literature. He attributes most chronic illness to a misunderstood multi-stage progression of Epstein-Barr virus, a framework that exists nowhere in established virology or immunology. His website includes an unusually prominent disclaimer acknowledging he is not a licensed medical professional of any kind.

Critics, including registered dietitians, medical doctors, and science journalists, have highlighted the serious harm potential of William's advice, particularly for chronically ill patients who delay or abandon evidence-based treatment in favour of his protocols. His enterprise generates substantial commercial revenue through book sales, online programs, and recommended supplement and product purchases. No controlled clinical trials support any of his key therapeutic claims.

“Drinking 16 ounces of pure celery juice every morning on an empty stomach contains magical 'cluster salts' that heal virtually every chronic illness”

The concept of 'cluster salts' does not exist in biochemistry or nutrition science. No high-quality clinical studies support celery juice as a treatment for any disease. Celery is a nutritious vegetable but contains nothing beyond standard phytonutrients and minerals. Dietitians and the broader medical community are uniformly unsupportive of these claims.

“Virtually all chronic illness, including thyroid disease, autoimmune conditions, and neurological disorders, is caused by the Epstein-Barr virus progressing through four secret stages the medical community has not discovered”

EBV has two known strains, not the 60+ variants William claims. His four-stage disease progression model has no basis in virology or immunology literature. Attributing all chronic illness to a single misunderstood viral cause leads patients away from accurate diagnosis and evidence-based treatment.

“His medical knowledge is valid because it comes from a spirit who communicates directly with him, providing information beyond what medical science currently knows”

Supernatural communication is not a valid epistemological source for medical claims. William's disclaimer explicitly states he is not a licensed healthcare professional of any kind. Vulnerable sick patients who follow advice derived from alleged spirit communication instead of consulting doctors face real physical harm.