Dr. John BriffaDr John Briffa is a practising doctor and award-winning health writer who has contributed to a wide variety of newspaper and magazines both in the UK and abroad. He was formerly the natural health columnist for the Daily Mail, and has been the Observr’s nutritionist since 2002. He is the author of several books on the subject of health, nutrition and natural health. He works in private practice in London. Read More Read Less