Reports this week of a new study showing that eating regular doses of fish oils can dramatically boost children’s performance. At Fleetwood sports college, in Lancashire, the share of pupils getting five higher grades at GCSE jumped in a year from 27 per cent to 34 per cent after they swallowed Haliborange’s tablets for 12 weeks before exams. But surely some improvement is down to the school’s headteacher, one Steve Roe?