A new study published in the Proceedings of the National Academy of
Sciences (PNAS) points to the homogenization of global diets over the past
fifty years. It shows that worldwide production of traditional staples
such as millet, rye, sorghum, yams and cassava have been in decline.
Instead, the world’s population increasingly relies on a relatively
small number of ‘megacrops’ like wheat, corn and soy, raising
serious concerns for global food security, human nutrition, and the
genetic diversity of crops.
