Chris van Tulleken
Christoffer Rodolphe van Hoogenhouck-Tulleken (born 18 August 1978), also known as Dr Chris, is a British physician, academic, writer and television presenter.He is the identical twin brother of Alexander "Xand" van Hoogenhouck-Tulleken, who has had a similar career in global and public health. They have jointly presented several television and radio programmes, including ''The Doctor Who Gave Up Drugs'', ''The Truth About...HIV'''','' the children's series ''Operation Ouch!'' and the radio podcast ''A Thorough Examination''. Investigating dietary causes for disease, van Tulleken authored the ''Sunday Times'' best-selling book ''Ultra-Processed People''. Provided by Wikipedia