What’s wrong with Gillian McKeith

For years, 'Dr' Gillian McKeith has used her title to sell TV shows, diet books and herbal sex pills. Now the Advertising Standards Authority has stepped in. Yet the real problem is not what she calls herself, but the mumbo-jumbo she dresses up as scientific fact, says Ben Goldacre.

‘DNA diets’ under the microscope

Scientists are warning internet users about web-based companies which offer tailored diets to counter genetic vulnerability to certain cancers and other illnesses. Some sites are charging up to £1,000 for genetic testing and a dietary plan. But top scientists in the emerging field say the claims of some websites are "pie in the sky".