Statins are among the most widely prescribed drugs in the world. Yet many report serious side effects and a US survey revealed that 75 per cent of respondents stopped taking them within a year. So what is the evidence for their benefits? Dr Aseem Malhotra, author of the bestselling The 21-Day Immunity Plan and co-author of the bestselling The Pioppi Diet, examines the claims for statins and their role in lowering cholesterol...