Think carefully before returning to Stone Age diet

A study by Professor Mark Thomas (UCL Genetics, Evolution & Environment) argues that carbohydrate consumption, particularly in the form of starch, was critical for the accelerated expansion of the human brain over the last million years. Read: Times (£), More: New York Times, Telegraph, National Geographic, Listen: BBC World Service 'The Science Hour' (from 7 mins 45 secs), More: BBC Radio 4 'BBC Inside Science' (from 1 min 25 secs)