Prehistoric ancestors ate a rich variety of plant-based foods during the Stone Age, say scientists who discovered a collection of 780,000-year-old edible plants in Israel.
These plants may develop toxic components as the climate changes and the global population expands, particularly in poor countries. However, in rich countries too, increasing interest in wild edibles also raises the risk for people ...
Arrowheads seem to thrive in the somewhat boggy conditions. Another edible plant worth trying is water spinach.