Although they avoid the use of the term "quack", doctors interviewed by The Guardian maintain that such transplants are medically impossible and not supported by peer-reviewed medical evidence.
It contained a drug, as Holmes expected, but there was also a letter there from a man named Lowenstein who, it turns out, is a quack whose help the professor sought out as a way of achieving rejuvenation, which he thought would be advisable if he were going to marry a young woman.
Edzard Ernst, the UK's first professor of complementary medicine, said Duchy Originals detox products are "outright quackery".
John R. Brinkley (1885–1941), American doctor known for his radio broadcasts and accusations of quackery
In 2008 Phelps was awarded the Bent Spoon Award by the Australian Skeptics Association, an award "presented to the perpetrator of the most preposterous piece of paranormal or pseudoscientific piffle", for "selling quackery and woowoo".
The Gigli Concert deals with seven days in the relationship between Dynamatologist JPW King, a quack self-help therapist living in Dublin but born and brought up in England, and the mysterious Irishman, a construction millionaire who asks King to teach him how to sing like the Italian opera singer Beniamino Gigli.