Super green food

WHAT food would qualify for the title of “the most powerful food on earth”? There must be much debate about this, but one food – a primitive blue green algae called spirulina – would come closest.  

The list of endorsements is quite impressive. The National Aeronautics And Space Administration (NASA) of the United States feeds astronauts in space with spirulina on their long haul flights. The United Nations bills it as “food for the future”. The World Health Organisation (WHO) calls it “useful food” and feeds starving kids in China, India and Tanzania. The Russians are investigating is as “radiation and immune enhancing medicine” after its impressive effects following the Chenorbyl disaster.