KADUNA, Nigeria ¨C In a flowing cream hijab, Karima M. Imam walks through her fields in scrubland in northern Nigeria as workers harvest a gnarled brown root that has turned gold since COVID-19 struck: ginger.
¡°If I had the capital, I¡¯d plant more. People are looking for ginger now, and there is not enough,¡± she said at her five hectare farm on the outskirts of Kaduna.
As the pandemic rages, people around the world have sought to guard against illness by turning to so-called halo foods. While scientists have dismissed many claims on social media about how superfoods can fend off the virus, their positive role as part of a healthy diet is widely acknowledged.

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