Which came first: the people or the sweet potatoes?

The bulbous, colorful sweet potato has long been seen as an artifact of mankind's first ocean voyages, ferried from its home in South America all the way to Polynesia centuries ago.

Developers of fortified food staple awarded World Food Prize

Four scientists credited with creating food that's fortified with essential nutrients and vitamins and has helped an estimated 10 million people avoid starvation and disease were awarded this year's World Food Prize on Tuesday.

Fortified against blindness

Vitamin A deficiency is the leading cause of preventable blindness in children. It also increases the risk of disease and death from severe infections, according to the World Health Organization. About 250 million preschool ...

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