Description green barley has been a staple food of human populations since at least 7 000 b c and in japan the young grass is one of several traditional green foods that are considered to be energising and anti ageing it is a good natural alkaliser and may also aid digestion and detoxification green barley contains over 70 nutrients including vitamins minerals amino acids and enzymes in particular super oxide dismutase s od a powerful free radical scavenger in addition green