Limited utilization of foodstuffs
Forgotten food products
Ignorance of traditional agricultural products
Only 1,100 of the earth's 265,000 species of plants have been thoroughly studied by Western scientists, but as many as 40,000 may have medicinal or undiscovered nutritional value for humans.
In pre-Colombian times protein-rich amaranth and guinea were basic foods in the New World along with maize and beans, but nowadays they are seen as weeds.