Gillian McKeithGillian McKeith (born 28 September 1959) is a Scottish television personality and writer. She is known for her promotion of various pseudoscientific ideas about health and nutrition. She is the former host of Channel 4's ''You Are What You Eat'' (2004–2006), Granada Television's ''Dr Gillian McKeith's Feel Fab Forever'' (2009–2010), and W Network's ''Eat Yourself Sexy'' (2010). In 2008, McKeith regularly appeared on the E4 health show ''Supersize vs Superskinny'', and in 2010, she was a contestant on the tenth series of the ITV show ''I'm a Celebrity...Get Me Out of Here!''
Numerous dieting and lifestyle plans supported by McKeith, such as the concept of the detox diet and the value of colonic irrigation, are pseudoscience not supported by scientific research, as are her claims that through examining people's tongues and stool samples she can identify their ailments and dietary needs. McKeith possesses no qualifications in nutrition or medicine from accredited institutions, and in 2007 agreed with the Advertising Standards Authority to stop using the title "Doctor".
McKeith has written several books about nutrition, including ''You Are What You Eat'' (2004), which sold over two million copies, and ''Dr Gillian McKeith's Ultimate Health Plan'' (2006). However, the validity of her approach and the safety of her recommendations have been strongly criticised by health professionals. She faced criticism during the COVID-19 pandemic for promoting COVID-19 misinformation and anti-vaccine views, and was described as a conspiracy theorist. Provided by Wikipedia